Oil-water separation unit and coal tar dechlorination device

The utility model belongs to the technical field of coal tar dechlorination, and particularly relates to an oil-water separation unit and a coal tar dechlorination device. The oil-water separation unit comprises a separation tower, the side wall of the separation tower is provided with a plurality of mixed liquid inlets, the top of the separation tower is provided with a water phase outlet, and the bottom of the separation tower is provided with an oil phase outlet; the plurality of centrifugal separation internal parts are arranged in the separation tower and are communicated with the mixed liquid inlet, a light-phase material outlet is formed in the top of each centrifugal separation internal part, and a heavy-phase material outlet is formed in the bottom of each centrifugal separation internal part. According to the oil-water separation unit provided by the utility model, centrifugation and standing are organically combined, so that the oil-water separation time is obviously shortened, the oil-water separa