Lifting type channel dredging device

The utility model discloses a lifting type channel dredging device. The lifting type channel dredging device mainly comprises a propeller, a weeding mechanism and a motor bin. The propeller comprisesblades and a fixing head, wherein the blades are fixedly connected with the fixing head. The weeding mechanism comprises a tool apron, a buffer pad, a gasket and a limiting base. A buffer groove and aplurality of limiting holes for detachably mounting the blades are formed in the upper surface of the tool apron, and the buffer pad is mounted in the buffer groove in an interference fit manner. Themotor bin comprises a two-way output motor and a bin body, the two-way output motor is arranged in the bin body, a front output shaft of the two-way output motor penetrates out of the front portion of the bin body, a rear output shaft of the two-way output motor penetrates out of the rear portion of the bin body, and the propeller is installed on the front output shaft in a transmission mode through matching of the fixing