Efficient dust falling device for green building engineering garbage treatment

The utility model discloses an efficient dust fall device for green building engineering garbage disposal, which comprises a main body assembly, a box body, a support column, a feed port, a crushing device, a discharge port and a moving part, the support column is fixed at the bottom of the box body, the feed port is arranged at the top of the box body, the crushing device is arranged on the box body, and the discharge port is arranged on the box body. The discharging opening is formed in one side of the box body, and the moving part is rotationally connected to the bottom of the supporting column; and the dust falling assembly is arranged on the main body assembly and comprises a dust collection part and a spraying part, and the dust collection part is arranged on the box body. The building engineering garbage crushing device has the beneficial effects that the dust collection part is used for sucking a large amount of dust generated when the crushing device crushes building engineering garbage, the spraying