Dust removal device of steel surface treatment shot blasting machine

The utility model discloses a steel surface treatment shot blasting machine dust removal device which comprises a dust removal box, the lower end of one side of the dust removal box is connected with a dust inlet pipe communicated with an air exhaust pipeline of a shot blasting machine, the dust inlet pipe is connected with a flow limiting valve, a sliding block is arranged in an empty groove in a sliding connection mode, and springs are arranged on the lower face of the sliding block and the bottom face of the empty groove in a connected mode. A first filter screen is connected between the sliding blocks, collision blocks are connected to the two sides in the dust removal box and located below the first filter screen, the output end of the motor extends into the empty groove to be connected with a cam, an upper cover is connected to the upper face of the dust removal box, dust removal tanks are connected to the two sides of the sector of the upper cover, and air outlets are connected to the dust removal tank