Gutter inlet flow measuring device capable of automatically flushing

The utility model discloses a gutter inlet flow measuring device capable of being automatically flushed. The gutter inlet flow measuring device comprises a flow guide box, a rectifying assembly, a rainwater grate, a combined metering weir plate and a water level measuring assembly. Wherein a water inlet is formed in the flow guide box, and a rectification assembly connected with the water inlet isarranged in the flow guide box; the rainwater grate is arranged on the flow guide box and covers the water inlet in the flow guide box; a combined metering weir plate is arranged on one side surfaceof the flow guide box; two effluent weirs are respectively arranged at the upper part and the lower part of the combined metering weir plate; an inclined bottom plate is arranged at the bottom of theflow guide box; the high end of the inclined bottom plate is positioned on one side of the flow guide box provided with the combined metering weir plate; the water level measuring assembly is arrangedat the bottom in the flow g