▎ 摘　　要

NOVELTY - The prefabricated building wall has a wallboard (1) provided with a cavity (2), and the outer wall of the wallboard is rotated and connected with a fan blade (4) through a rotating rod (3). A supporting plate is arranged in the cavity below a pressing plate (5), and an extrusion bag (6) is arranged above the supporting plate. The upper end of the squeeze bag is movably snapped into the cavity, and the outer wall of the wallboard at the squeeze bag is provided with an air inlet slot (7) communicating with its interior. A one-way valve (8) is set in the air inlet slot, and the inside of the squeeze bag communicates with the cavity below the support plate through an air outlet pipe passing through the support plate. An air outlet groove (9) communicating with the cavity is arranged on the inner wall of the wall panel below the support plate. USE - Prefabricated building wall for use with air purification function. ADVANTAGE - The prefabricated building wall can begin to purify the air after being assembled and formed, and natural wind is used as the driving force without electric drive. The construction is simple, has the function of air purification, and has good reliability and applicability. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a prefabricated building wall. 1Wallboard 2Cavity 3Rotating rod 4Fan blade 5Pressing plate 6Extruding bag 7Air inlet slot 8One-way valve 9Air outlet groove 10Filter screen 13Heat absorbing bag 14Heat conducting plate 16Sealing sleeve 17Nano-graphene powder 18Connecting block 19Conveying strip 21Reflux strip 22Ball