Drainage regulating valve

The invention belongs to the technical field of drain valves, and particularly relates to a drain regulating valve which comprises a valve body, a valve cover is installed on the valve body, a water outlet hole is formed in the valve cover, a water outlet connector is fixedly connected to the valve body, a water inlet pipe is arranged at the bottom of the valve body, a rod body is rotatably installed at the bottom of the valve cover, and a barrel body is rotatably installed at the free end of the rod body. Two filtering units used for filtering liquid are installed in the filtering pipeline in a sliding mode, a moving unit is installed in the filtering pipeline and controls the two filtering units to be opened and closed alternately, a cleaning unit is installed on the valve body and used for cleaning the closed filtering units, the filtering pipeline is communicated with a switching pipe, and after the filtering units are switched to be opened and closed, the switching pipe is communicated with the valve bod