Coal powder mill (coal spray machine) is used for heating, heating, drying, annealing, tempering, steam, etc. This energy-saving coal powder mill has a steel shell externally. Its fuel is coal, which serves as a key heat source for various industrial furnaces. The coal powder mill is a combined machine of hammer mill crushing and centrifugal air delivery, used for粉碎 coal lumps and directly spraying coal powder into combustion chambers for combustion in various radiant furnaces, boilers, drying kilns, and焖火 (annealing) kilns. It can be used as a配套 for various furnaces in factories, mines, and enterprises. It can replace fuel oil, coal gas, and electric heating equipment, thereby saving up to 50% of energy, significantly reducing costs, pollution indices, labor intensity, and improving economic benefits.