Support board type horizontal discharge device for jig

The utility model discloses a horizontal discharging device of a jigger, particularly a supporting board type horizontal discharging device for the jigger. The utility model comprises a buoy, a control mechanism and a discharging passage. The upper part of the discharging passage is provided with a discharge opening which is composed of a supporting board, a baffle and the side wall of the discharging passage, and the both ends of the supporting board are provided with raising boards. The supporting board, the raising boards and the discharge opening are in sliding fit, the rise and the fall of the raising boards are controlled by the control mechanism, gaps between the supporting board and the baffle are regulated, and therefore, the purpose of controlling discharging speeds can be achieved. The utility model has the advantages of simple and reasonable structure and flexible control, phenomena that the material is leaked and the utility model is clamped to death can not occur, and the utility model is especially suitable for discharging for a mixed coal jigger and a powder coal jigger.