Oil-water separation device

The utility model relates to the technical field of oil-water separation, in particular to an oil-water separation device which comprises a box body, an oil filtering assembly, a filtering layer, a liquid outlet and a liquid discharge port, a first containing space and a second containing space are arranged in the box body, the oil filtering assembly is arranged in the first containing space and comprises a first filtering plate and a first intercepting plate, and the first filtering plate is arranged in the second containing space. The first filter plate and the box body define a cleaning pool, the first filter plate is provided with a first flow channel, the first interception plate is provided with a first filter channel, the first filter channel is lower than the first flow channel, the filter layer divides the second containing space into a filter pool and a water purification pool, the liquid outlet is communicated with the water purification pool, and the liquid discharge port is communicated with the