Soil permeation measuring device

The utility model discloses a soil permeability measuring device, including: sample storage device, pressurizing device and variable head device, sample storage device includes base, soil holding cylinder, soil sample cutting ring and pressurizing cover, soil holding cylinder is installed on base, soil sample cutting ring is provided in soil holding cylinder, pressurizing cover is covered on the top of soil holding cylinder, the base is provided with water outlet hole, the pressurizing cover is provided with water outlet hole. The pressurizing cover is provided with a water inlet hole; the pressurizing device comprises a supporting plate, a supporting frame and a pressurizing mechanism, the supporting frame is fixed to one side of the supporting plate, the pressurizing mechanism is fixed to the top of the supporting frame, and the pressurizing mechanism is provided with a pressure sensor; the variable water head device comprises a water supply bottle, a variable water head pipe and a water inlet pipe, the wat