The utility model relates to a bin discharging device, in particular to a poking roller type bin discharging device. In the poking roller type bin discharging device, a plurality of poking rollers are arranged in parallel on the same tilting plane relative to the vertical direction of a bin so that materials in the bin can be discharged smoothly, protected against arching and supplied continuously and smooth production can be guaranteed. Meanwhile, the poking roller type bin discharging device is simple in structure, relatively low in production cost and convenient to maintain in the later period.