Filtering device

The utility model discloses a filtering device which comprises a shell and a filtering cylinder, the shell comprises a cover body and a cylinder body, the filtering cylinder comprises a handle, a sealing ring, a filtering layer and a cylinder bottom, the filtering layer is rolled up to be in a straight cylinder shape, and the filtering cylinder is arranged in the shell; a shelf ring is arranged on the inner wall of the barrel, and the inner diameter of the shelf ring is smaller than the outer diameter of the sealing ring; the lifting handle of the filter cartridge is fixed on the sealing ring, the sealing ring is arranged at the top of the filter layer, and the cartridge bottom is arranged at the bottom of the filter cartridge; and the length of the handle is greater than the distance from the shelf ring to the opening of the container body. The auxiliary filtering device realizes filtering of the auxiliary through a simple structure, is high in practicability for industrial production, and has the characteri