The invention discloses an air energy firewood stove. A firewood inlet is formed in an outer sleeve; a fire door is movably mounted at the firewood inlet; an inner firewood inlet corresponding to the firewood inlet is formed in an inner sleeve; a smoke collecting hole is formed between the outer sleeve and the inner sleeve on two side parts of the inner firewood inlet; a heating hole is formed in the stove surface; a cover plate is movably covered at the heating hole; an ash falling hole is formed in the bottom of the stove; furnace teeth are arranged in the ash falling hole; an ash chamber shell is arranged under the bottom of the stove; an ash hole is formed in the side part of the ash chamber shell; an ash hopper is inserted and mounted in the ash chamber shell through the ash hole; and a smoke exhaust hole is also formed in the outer sleeve. The air energy firewood stove has the advantages that the smoke is effectively prevented from directly dissipating out of the heating hole or the firewood inlet, so that the heat energy utilization rate is increased, the smoke collection effect is enhanced, the consumption of fuel is reduced, and the energy conservation and environment protection effects are improved.