Energy storage filtering type water-gas separator and ship

The embodiment of the invention provides an energy storage filtering type water-gas separator and a ship. The water-gas separator comprises a first half tank body, a second half tank body and a filtering device; the first half tank body and the second half tank body are in butt joint to form a tank body, and the tank body is provided with a containing cavity. The filtering device is arranged at the butt joint of the first half tank body and the second half tank body and can separate the containing cavity, and gas can pass through the filtering device; the side face of the first half tank body communicates with a first connector. The side surface of the second half tank body is communicated with a second interface, and the end surface is communicated with a third interface; gas can flow into the containing cavity through the first connector and flow out of the containing cavity through the second connector, and liquid can flow out of the containing cavity through the third connector. The filtering device is ar