Material conveying pipeline connecting structure

The utility model discloses a material conveying pipeline connecting structure, and relates to the technical field of pipeline connection, the material conveying pipeline connecting structure comprises a movable mother pipe, a fixed mother pipe, a fixed son pipe and a movable son pipe, the movable mother pipe and the fixed mother pipe are both of semi-circular ring structures and are symmetrically distributed, a connector is fixed on the upper surface of the movable mother pipe, and the fixed son pipe is fixed on the lower surface of the movable mother pipe. A matching head is fixed to the position, corresponding to the connector, of the upper surface of the fixed mother pipe. The fixed sub-pipe is located in the fixed main pipe and fixedly connected with the fixed main pipe, the movable main pipe half surrounds the movable sub-pipe, the movable sub-pipe is slidably connected with the movable main pipe, and an extrusion block is fixedly installed on the outer wall, facing the inner circular face of the movabl