Dredging device

The invention provides a desilting device. The desilting device comprises a fixed seat, a first driving mechanism, a stirring cage, a rotating shaft, a stirring cutter assembly and a second driving mechanism, the first driving mechanism is arranged on the fixed seat; the stirring cage is rotatably connected with the fixed seat, a containing cavity is formed in the stirring cage, the stirring cage comprises a plurality of stirring rods arranged in the circumferential direction of the stirring cage at intervals, the stirring rods extend from top to bottom, and the first driving mechanism drives the stirring cage to rotate around the axis of the stirring cage; the rotating shaft is located in the containing cavity and rotatably connected with the stirring cage, the rotating shaft is parallel to the axis of the stirring cage, the side, close to the rotating shaft, of each stirring rod is provided with a cutter containing pit, and the cutter containing pits are arranged in the circumferential direction of the stir