Three-stage filtering powder dust removal box

The utility model discloses a three-stage filtering powder dust removal box which comprises a dust removal box body, a box door is hinged to an opening of the dust removal box body, the outer side of the box door is fixedly connected with a controller, the lower end of one side of the dust removal box body is communicated with an air inlet pipe, a first-stage filtering assembly is arranged in the air inlet pipe, and a second-stage filtering assembly is arranged in the dust removal box body. A dust collection groove body is arranged below the second-stage filtering assembly, the dust collection groove body is connected to the inner wall of the dust removal box in a sliding mode, the second-stage filtering assembly is located above the first-stage filtering assembly, an air outlet penetrates through the top wall of the dust removal box, and a third-stage filtering assembly is arranged at the air outlet. Dust in air is filtered and purified in a multi-stage mode, the filtering frequency of the air containing the