Forestry weeding machine with self-cleaning mechanism

The utility model discloses a forestry weeding machine with a self-cleaning mechanism, which comprises a weeding machine control frame, and the weeding machine control frame is used for forestry weeding; a supporting shaft is fixedly arranged at one end of the weeding machine control frame, weeding pieces are rotationally arranged at one end of the supporting shaft, a positioning seat is fixedly arranged at one end of the outer wall of the supporting shaft, and a positioning rod is fixedly arranged in the middle of the bottom of the positioning seat. Through positioning of the positioning rod, the first supporting frame and the second supporting frame which are inserted in the outer wall of the positioning rod in a penetrating mode drive the two fixing rods and the cleaning brush to make contact with the two sides of the weeding piece respectively, and through positioning sliding of the positioning groove formed in one side of the first supporting frame and elastic deformation of the spring inserted in the ou