Self-service water vending machine

The utility model discloses a self-service water vending machine. The device comprises a box body, a water purification device, a booster pump and a water storage tank, a box door is movably arrangedat the upper part of the box body; a water taking bin is embedded into the lower part of the box body; a support, a bearing plate, an electricity meter, a water meter, a power failure detection sensorand a water cut-off detection sensor are arranged in the box body. Wherein a control panel, a payment device and an electromagnetic lock are arranged on the tank door, the water purifying device comprises a primary filtering device and a fine filtering device, the two ends of the booster pump are connected with the filtering device and the fine filtering device through pipelines respectively, anda water quality sensor is arranged in the water storage tank. The water quality monitoring device is simple in structure, convenient to operate, stable in water quality and convenient to maintain, the water quality in the wate