FXMC type square box pulse bag filter has the features of big processing capacity, effective cleaning result and high dust removal efficiency. It has a satisfied purification result when processing the low and high temperature exhaust gas of spraying and drying technology and equipment. It can be widely used for high and low temperature dust, dust treatment or material recovery in metallurgy, building materials, electrical, mechanical manufacturing, shot blaster, carbon and other industries. The deduster is mainly composed by the upper box, middle box, dust hopper, frame, filter bag, jet cleaning device, discharging device and other components.