Novel pig cage-free pipe cleaner launching station

The utility model provides a novel pig cage-free pipe cleaner launching station, which comprises a launching cavity welding assembly and a pipe cleaner, a pipe body is arranged on the launching cavity welding assembly, and the pipe cleaner is in clearance fit with the pipe body after the pipe cleaner is positioned in the pipe body. In the utility model, a pipe body and an expansion pipe positioned at one end of the pipe body are welded on an emission cavity assembly, the peripheral wall of the expansion pipe is fixedly connected with an inlet pipe, the other end of the pipe body is connected with an outlet adapter, the inner cavities of the pipe body and the expansion pipe are emission cavities, and the outer wall of the pipe body is connected with a stop lever cylinder through a stop lever flange; the stop lever air cylinder is used for limiting the pipe cleaner in the launching cavity, the cavity diameter of the expansion pipe is larger than the inner cavity diameter of the pipe body, and therefore the flow