Coal chemical industry flue gas dust removal device

The utility model discloses a flue gas dust removal device for coal chemical industry, and relates to the technical field of smoke dust treatment equipment. The lifting plate is fixedly arranged at the upper end of the filter screen; the sealing plate is fixed outside the lifting plate in a sleeving manner; the sealing mechanism is arranged above the sealing plate, and the fixing plate is fixedly arranged on the outer wall of the rear side of the filter box; the connecting rods are respectively and crossly screwed on the pin shafts; the electric push rod is screwed to the inner side of the connecting rod on one side through a hinge seat, and the output end of the electric push rod is screwed to the inner side of the connecting rod on the other side through a hinge seat. The moving rods are fixedly arranged at the front ends of the connecting rods respectively; the clamping plates are fixedly arranged on the inner sides of the moving rods correspondingly, and the inner sides of the clamping plates abut against