Online sewage monitoring water supply and drainage device

The utility model discloses a sewage on-line monitoring water supply and drainage device which comprises a water inlet pipe and further comprises a three-way connector arranged at the water inlet endof the water inlet pipe. The first shunt pipe is connected to the three-way connector; the second shunt pipe is connected to the three-way connector; the first water collecting tank is connected to the end, away from the three-way connector, of the first flow dividing pipe; the second water collecting tank is connected to the end, away from the three-way connector, of the second flow dividing pipe; the liquid level meters are arranged on the first water collecting tank and the second water collecting tank; the return pipe is arranged at the water outlet ends of the first water collecting tankand the second water collecting tank; the drain pipe is arranged at the water outlet ends of the first water collecting tank and the second water collecting tank; the discharging pool is communicatedwith the water discharging