Wellhead anti-falling net connecting structure of drainage pipeline

The utility model provides a drainage pipeline wellhead anti-falling net connecting structure, and mainly relates to the technical field of anti-falling nets. The drainage pipeline wellhead anti-falling net connecting structure comprises a well wall, an anti-falling net and a connecting structure, a plurality of mounting grooves are symmetrically formed in the well wall in a circular shaft mode, the connecting structure is fixedly mounted in the mounting grooves, the connecting structure is movably connected with the anti-falling net, the connecting structure comprises a shell, a fixed pulley is rotationally arranged in the shell, and the fixed pulley is movably connected with the anti-falling net. A movable pulley is arranged in the shell in a sliding mode, a fixing seat is arranged in the shell, a steel wire rope is fixedly connected to the fixing seat, the steel wire rope is sequentially wound on the movable pulley and the fixed pulley, and a rope knot is arranged at the tail end of the steel wire rope. Th