Upper and lower reservoir water level measuring device

The utility model discloses an upper and lower reservoir water level measuring device which comprises a water level measuring assembly, the water level measuring assembly comprises a support, a filter cartridge and a water level gauge adjusting and positioning mechanism, and the adjusting and positioning mechanism comprises a bottom plate, a gear motor, a sleeve, a sliding plate, a spring and a pressure sensor. According to the utility model, the bottom plate drives the spring to stretch under the action of gravity by utilizing the sliding plate, then the speed reducing motor drives the filter cartridge to drive the water level gauge to move downwards, and then the filter cartridge intercepts silt suspended in water, so that the error between the actual density and the default water density is reduced; the moving filter cylinder drives the bottom plate to make contact with sediment deposited at the bottom of the reservoir, then the pressure sensor extrudes the sliding plate so that whether the descending dept