Metal polishing dust filtering and settling device

The utility model discloses a metal polishing dust filtering and settling device, and belongs to the field of dust treatment equipment. Comprising an air blower, a filtering box and a spraying box, a first air inlet and a first air outlet are formed in the air blower, a second air inlet and a second air outlet are formed in the filter box, a plurality of filter screens are arranged between the second air inlet and the second air outlet, and the first air outlet is communicated with the second air inlet of the filter box; the spraying box is provided with a third air inlet and a third air outlet, a spraying device is arranged between the third air inlet and the third air outlet, a sedimentation tank is arranged at the lower part of the spraying box, an overflow tank is arranged at the lower part of the outer side of the spraying box, the lower part of the sedimentation tank is communicated with the lower part of the overflow tank, and an overflow port of the overflow tank is flush with the upper part of the se