Dust collecting and falling device for mechanical earthwork operation

The utility model discloses a mechanical earthwork dust collection and fall device which comprises a dust collection box, a pump box is arranged on the upper end face of the dust collection box, an exhaust fan is installed in the pump box, the input end of the exhaust fan is connected with a dust collection pipe through a first flange, the upper end of the dust collection pipe is connected with a plurality of vertical pipes, and the upper ends of the vertical pipes are connected with dust collection heads. The outer surface of the dust suction pipe is sleeved with a disc, the disc is embedded in the upper side wall of the pump box, the output end of the exhaust fan is connected with one end of a dust exhaust pipe through a second flange, the other end of the dust exhaust pipe extends into the dust removal box, and the right end face of the dust removal box is connected with a dust exhaust port. Dust removal blockage can be avoided, and continuous dust removal is guaranteed; the dust removal device is convenie