Discharging device of spreader

The utility model discloses a spreader discharging device which comprises a spreader, a plurality of discharging pipes are fixedly connected to the side wall of the spreader, a first harrow plate is slidably arranged on the side wall of a second harrow plate in an attached mode, the first harrow plate and the second harrow plate are the same in structure and different in length, and a driving device is fixedly connected to the side wall of a flow guide mechanism. The driving device can drive the flow guide mechanism to drive the first harrow plate to reciprocate, the maximum amplitude of the first harrow plate is smaller than the harrow distance of the first harrow plate, the multiple connecting shafts are slidably sleeved with a buffer plate, the first harrow plate is arranged in the buffer plate and fixedly attached to the buffer plate, the top face of a transverse plate of the buffer plate is an inclined face, and a buffer assembly is fixed to the side wall of the flow guide barrel. The cement falls onto t