Special-purpose bag filter for underground coal mine

A special-purpose bag filter for underground coal mine is characterized in that: a rectangular dedusting box matched with a coal conveyer chute or a coal conveyer belt is arranged at the lower end of an induced draft pipe of the bag filter according to the condition of the underground coal mine, an explosion proof type special induced draft fan and an explosion proof type motor thereof are arranged at the outlet end of the induced draft pipe, an explosion proof type program control box is arranged beside the explosion proof type motor, shaking pieces are respectively arranged on hanging beamsin the dedusting box, antistatic filter bags are respectively arranged under cap nuts at the lower parts of the two ends of each shaking piece, the lower ends of the filter bags are respectively connected onto short pipes above a ventilation tubeplate, one side face of the dedusting box is provided with an upper-layer access door and a lower-layer access door which are convenient to open and close, an opening for dusty ga