Coal mine tunnel white-washed spraying device

The utility model discloses a coal mine tunnel white-washed spraying device which comprises an iron barrel, wherein the volume of the iron barrel is 200 liters, three holes are formed in the iron barrel, a valve is respectively arranged on the three holes, the first hole is a feeding hole, the second hole is an air intake, the third hole is a discharge hole, and the discharge hole is connected with a duckbilled type material nozzle through a hose pipe. When the coal mine tunnel white-washed spraying device is used, firstly the valves of the air intake and the discharge hole are closed, the valve of the feeding hole is opened to enable stirring materials to be placed into the iron barrel, and then the valve of the feeding hole is closed. When spraying is needed, the valve of the discharge hole is firstly opened, then the valve of the air intake is opened, and the material nozzle just need to aim at a tunnel which needs to be constructed and sprays. The coal mine tunnel white-washed spraying device has the adva