The characteristics of mine hot blast stove are as follows: the heating hot blast stove's thermal efficiency is as high as 72%, ranking the top among the same kind of drying machinery; the heating hot blast stove's mechanization degree is high, full-automatic operation, slag discharging and coal loading are unnecessary; the heating hot blast stove's operation is stable and easy; it can be used with various dryers, and its service life is long, and the grate's service life is more than ten years; the mine hot blast stove can make Use multiple fuels.