▎ 摘　　要

NOVELTY - The utility model claims a centralized air purifier structure device, comprising a side wall of the box body, box body is provided with an air inlet, box body upper part is provided with an air outlet, the separating ring which is arranged inside the box body inside one end of separating ring connected with the peripheral outline of the air outlet, and the other end has a gap with the bottom of the box body, a dust particulate filter mounted at air inlet position for filtering the dust and particles in the air, multiple graphene-based air purification filter net, which is set in the separating ring, distributed in layers; fan, which is set at the air outlet. after the saturated dust particles net work for a period of time need to change, the dust particle filtering net the utility model in the side wall of the box body, it is convenient for replacing and maintaining, the separating ring can effectively increase air retention in the case of time, graphene-based air purification filter net decomposing formaldehyde provide enough time, improve the formaldehyde decomposing effect.