The invention provides a multifunctional electric automation equipment dust removing device. The device comprises a moving seat, moving brake wheels, fixing blocks, a collecting box, a fixing plate, aslidable clearing frame structure, a rotatable clearing fixing structure, an adsorbable observation cover structure, an insertable collecting clearing bag structure, an air exhaust hole, a filter pipe, a clearing hole, a sealing cover, a fixing pipe, a connecting plate, a suction fan, a collecting connecting pipe, a stainless steel hose and an L-shaped connecting pipe, wherein the moving brake wheels are connected at the four corner positions of the lower end of the moving seat correspondingly through bolts, and the lower ends of the fixing blocks are welded at the four corner positions of the upper end of the moving seat correspondingly. According to the device, a U-shaped fixing frame, a clearing motor, a connecting clearing pipe, an inverted-T-shaped connecting seat and clearing bristles are arranged, so that in the working process, the clearing motor drives the inverted-T-shaped connecting seat and the clearing bristles to rotate so as to sweep away dust on the surface of automation equipment.