Water draining device with storage facilities

The invention relates to the technical field of water supplying and draining and discloses a water draining device with storage facilities. The water draining device comprises a box body and further comprises a water purifying filter element, an adjusting water pump, a water feeding pipe, a first pressure sensor, a first tee pipe coupler, a first electric adjusting valve, a second electric adjusting valve, a water draining branch, a water storage tank, a third electric adjusting valve, a second tee pipe coupler, a second pressure sensor, a water feeding header pipe and a control system which are arranged in the box body; the water purifying filter element and the second pressure sensor are successively arranged on the water feeding header pipe along the water draining direction; the adjusting water pump, the first pressure sensor, the first electric adjusting valve, the second electric adjusting valve, the third electric adjusting valve, the second pressure sensor, a liquid level sensor and a water pump are r