Heating furnace capable of purifying air

The invention relates to a heating furnace capable of purifying air, belonging to the field of heating furnaces for living chambers. The heating furnace capable of purifying the air is a coal-fired heating furnace which can be used for directly heating and purifying indoor air, circularly heating and purifying the indoor air with high efficiency to adjust the air humidity, removing floating dust in the air and removing bacteria and viruses attached to the floating dust, thereby being very beneficial to health. Coals are vaporized to generate CO and combustible gases; when the coals are burnt in a combustion chamber, flame directly heats an inorganic heat superconducting pipe, and the upper part of the heat pipe extends to a heat release cavity which is strictly isolated from the heat pipe; the indoor air enters the cavity after being filtered, and is driven by an exhaust fan; and after the air absorbs heat, the humidity of the air is adjusted, and then, the air enters the other end of the room for continuousl