Drainage tube convenient to wash and drain

The utility model relates to the technical field of drainage tubes, and discloses a drainage tube convenient for flushing and drainage, which comprises a drainage tube main body, two sliding blocks are arranged on the surface of the drainage tube main body, a groove is arranged on the surface of one sliding block, a first magnet is fixed on the surface of the groove, a second magnet is fixed on the surface of the other sliding block, and the first magnet and the second magnet are fixed on the surface of the drainage tube main body. By means of mutual matching of the drainage tube bodies, the sliding blocks and other parts, when the drainage tube is used, the drainage tube can work normally even if a single tube is blocked, and even if the two tubes are blocked at the same time, the drainage tube is convenient to wash and dredge. Therefore, the problem that an existing device cannot work when being blocked is solved. Due to the fact that the two drainage tube bodies are connected in parallel and provided with