Smoke dust filter with self-cleaning structure

The utility model discloses a smoke dust filter with a self-cleaning structure. The smoke dust filter comprises an outer shell, a filter cavity, a blow-down valve, a scrubbing mechanism, a filter screen, a rotary drum, a discharge pipe, a flushing structure, an input pipe and the like, the motor arranged in the dust removal device can drive the rotating drum to rotate integrally through the driving gear and the driven gear, so that the filtering uniformity of the filter screen is ensured, in addition, the rotating rotating drum can throw away smoke dust, and the long-time filtering effect is also improved; according to the brushing mechanism, bristles can move rightwards to be in contact with the outer surface of the filter screen through extension of an air cylinder, so that filtered objects on the outer surface of the filter screen can be brushed out, and meanwhile, the cleaning effect is improved by being matched with a rotating drum; according to the washing structure, water can be sprayed through the noz