Oil-water separation device

The utility model discloses an oil-water separation device which comprises a box body, the box body is sequentially provided with a control chamber, a separation chamber and a pump chamber from top to bottom, a controller is arranged in the control chamber, the separation chamber is divided into an oil storage cavity and a separation cavity through an overflow partition plate, and an oil outlet is formed in the lower end of the oil storage cavity. A water outlet and a water outlet pipeline connected with the water outlet are arranged at the lower end of the separation cavity, and a floating control assembly used for controlling the water outlet to be opened and closed is arranged in the separation cavity; a pumping-in assembly and a pumping-out assembly which are both connected with the controller are installed in the pump chamber, the pumping-out assembly is communicated with the oil storage cavity through the oil outlet, and the pumping-in assembly is used for pumping floating oil into the separation cavity