Raw coal grading and blending system in coal mine production

The utility model discloses a raw coal grading and blending system during coal mine production, which comprises a feeding chute vertically arranged, a left discharging chute obliquely arranged, a right discharging chute symmetrically arranged with the left discharging chute, and a raw coal rotating selection rod horizontally arranged and positioned at the bifurcation position of the left discharging chute and the right discharging chute, wherein the upper end of the left discharging chute is communicated with the feeding chute; the raw coal rotating selection rod is fixed between the left discharging elephant trunk and the right discharging elephant trunk through a bearing and used for rotating left and right along with rotation of the raw coal rotating selection rod; the stress rod is used for bearing leftward or rightward thrust, and then the raw coal rotating selection rod drives the raw coal rotating baffle to move rightward or leftward, so that the raw coal rotating baffle blocks an upper end inlet of th