▎ 摘　　要

NOVELTY - The air purifier has a case (100') in which an inlet is formed to suck in external air. A primary purification unit is provided inside the case to purify the sucked air. A discharge unit (130') is formed on the upper portion of the primary purification unit, for discharging purified air. The space in the primary purification unit is divided into a purification unit, a washing unit and a sterilization unit by blocking plates radially arranged in the primary purification unit. A filter unit is provided in each purification unit, the washing unit and the sterilization unit. The filter of the multi-stage filters constituting the filter unit is a conductive filter in which a conductive coating layer is formed on a non-conductive filter. The conductive coating layer is metal coating layer, an alloy coating layer, a graphene coating layer, copper coating layer, copper-zinc alloy coating layer and a carbon nanotube coating layer. USE - Multifunctional air purifier of air conditioning system (claimed) installed in public facility, large building, and various industrial site. ADVANTAGE - The air purifier can perform purification, washing, and sterilization at the same time, so that the purification operation can be performed without stopping in the industrial site. The semi-permanent recycling is possible through re-plating if the coating layer in the filter is damaged. The charged fine dust is efficiently collected, since filter is configured as conductive filter. The purification efficiency is increased by filtering foreign substances in the air that have not been filtered by the primary purification unit, through secondary purification unit formed of cartridge-type filters. The washing unit can increase the washing power by spraying washing water directly on the filter, and the sterilizing unit performs drying and sterilization at the same time by the UV LED, and the purifying unit separates the washing unit and the sterilizing unit from the washing water, so that the purification efficiency is improved. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the air purifier. Case (100') Discharge unit (130') Fan motor (132') Fan (134') Outlet (136')