Detachable filter for vacuum pump

The utility model discloses a detachable filter for a vacuum pump, and relates to the related technical field of mechanical equipment. The drying device comprises a filter cartridge, an arc-shaped bent pipe, a transfer pipe, a drying assembly and a filter assembly, the filter assembly is arranged in an inner cavity of the filter cartridge, the bottom end of the filter cartridge is fixedly connected with one end of the arc-shaped bent pipe, the other end of the arc-shaped bent pipe is fixedly connected with the bottom end of the transfer pipe, and the end, away from the arc-shaped bent pipe, of the transfer pipe is connected with the drying assembly. An oil mist filter element is inserted into the arc-shaped bent pipe; the filter assembly comprises a net cylinder and an end cover, the bottom end of the net cylinder is fixed to the upper end of the end cover, and an impurity removal filter element is arranged in the net cylinder. Through the arrangement of the filter cartridge, the filter assembly, the arc-shap