Solid-liquid separator

The utility model discloses a solid-liquid separator which comprises a rack, a pressure feed box, two compound filter belts and two support steel belts, wherein the two compound filter belts are vertically arranged on the rack, and can move horizontally; a feed dehydration channel is formed between the two compound filter belts; the upper part and lower part of the feed dehydration channel are respectively provided with a sealing sideband which can synchronously move with the compound filter belts; one support steel belt is arranged inside each compound filter belt; and the front end of the feed dehydration channel is connected with the pressure feed box which is provided with a feed inlet. A filter cake of the solid-liquid separator provided by the utility model can move in a horizontal direction, filter liquid of the solid-liquid separator moves in a vertical direction downward. Compared with the existing structure that the filter cake and the filter liquid move in the same direction, the movement distances