The whole vehicle adopts 10 conical membrane filter cartridges, the filter area is ≥90 square meters, the filter area is large, and the suction effect is better; and the air pulse filter cartridge cleaning device is installed, which greatly improves the filter cartridge cleaning effect. It can effectively reduce the clogging of the filter cartridge by dust and improve the operation effect; it is equipped with a large-capacity dustbin and dust box to improve the operation efficiency.