Device for heating air

The utility model relates to a device for heating the air, which comprises an air blower, a cold air pipe, a hand valve, a heat exchange discharge pipe, a temperature regulation air pipe, a thermocouple, an intelligent temperature control meter, an air pipe power-driven actuating valve, a vertical air collection box, a hot air output pipeline and a corresponding connecting line. The device for heating the air is capable of effectively heating the required air, and the temperature of the air is automatically controlled. When the stable hot air is burned by being mixed with fuels, burning effect of the fuels can be improved, quantity of remaining carbon monoxide in burnt gas is led to be decreased, fuel consumption is lowered, and accordingly the energy saving and emission reduction purpose is achieved. The device for heating the air has the advantages of being energy-saving, environment-friendly, simple in structure and low in cost.