Oil-water separator

The utility model discloses an oil-water separator in the field of oil-water separation, which comprises a shell, a filter box is arranged in the shell, a plurality of filter holes are arranged on the inner bottom wall of the filter box, a filter screen is arranged below the filter box, a heater is fixedly connected to the back of the shell, and the output end of the heater is fixedly communicated with an exhaust pipe. One end, far away from the heater, of the exhaust pipe is fixedly communicated with a spiral exhaust pipe, one end, far away from the exhaust pipe, of the spiral exhaust pipe penetrates through the shell and extends into the shell, the one-way valve is arranged, so that filtered oil and water can be discharged into the other side of the partition plate, hot air can be generated through the heater, and the hot air passes through the exhaust pipe; according to the oil-water separator, hot air can be discharged into the spiral exhaust pipe, the hot air can be better dispersed in oil water through