Milling machine self-cleaning device

The utility model relates to the technical field of auxiliary devices of machining equipment, in particular to a self-cleaning device of a milling machine, which can realize cyclic utilization of cutting fluid, can realize self-cleaning of scrap iron, reduces the workload of operators, improves the machining precision and improves the practicability. The device comprises a box body, a first rotating roller, a second rotating roller, a conveying belt, a motor and a speed changer, an inner cavity is formed in the middle of the box body, the first rotating roller and the second rotating roller are both located in the inner cavity of the box body and rotationally connected with the inner cavity, the first rotating roller and the second rotating roller are connected through a transmission device, and the conveying belt is wound on the first rotating roller and the second rotating roller; a liquid outlet is formed in the right end of the box body, a valve is arranged at the top end of the liquid outlet, a supportin