Sewage detecting and discharging system

The utility model discloses a sewage detection and discharge system which comprises a leachate tank body communicated with a leachate drainage pipe, a slag discharge mechanism arranged at a sludge outlet groove in the bottom of the leachate tank body, a dredging mechanism arranged at a discharge port in the middle of the leachate tank body, a sewage tank communicated with the water outlet end of the dredging mechanism, and a detection device arranged in the sewage tank, the detection device comprises a telescopic measuring mechanism erected above the sewage pool, a liquid level measuring instrument coaxially arranged at the upper end of the telescopic measuring mechanism and a lifting mechanism used for driving the telescopic measuring mechanism to stretch out and draw back in the vertical direction. The blocking cover and the stirring device are arranged, sediment can be periodically and orderly discharged, the deslagging efficiency is improved, the dredging module is arranged to be opened and closed in a re