Multifunctional pipeline dredging device

The utility model discloses a multifunctional pipeline dredging device which comprises a pipeline dredging machine and a dredging head, a connecting rod is arranged at one end of the dredging head, a connecting pipe is arranged at one end of the pipeline dredging machine, a through hole is formed in the middle of the connecting pipe, a sliding groove is formed in the outer wall of the connecting pipe, a sliding sleeve is arranged on the surface of the connecting pipe in a sleeved mode, and the sliding sleeve is connected with the dredging head. A circle of protruding block is arranged on the inner wall of the sliding sleeve, the protruding block is connected to the sliding groove in a sliding mode, and a plurality of round holes are evenly formed in one end, facing the through hole, of the sliding groove. The sliding sleeve is pushed, the protruding block and the round hole are staggered, displacement of the ball in the round hole is not limited by the protruding block, and therefore the dredging head can be