Stalk high-efficiency combustion furnace

The utility model discloses a straw highly-efficient combustion furnace, which comprises a furnace body, a primary combustion chamber arranged in the furnace body, a lower air chamber which is communicated with the primary combustion chamber arranged under the primary combustion chamber, a second combustion chamber arranged above the primary combustion chamber, an outlet opening of the second combustion flame arranged at the upper part of the second combustion chamber, an outer air duct which is communicated with the second combustion chamber arranged outside the furnace body, an inner air duct penetrating through the primary combustion chamber is provided, the lower part of the inner air duct is connected with the lower air chamber, and the upper part of the inner air duct is communicated with the furnace core of the second combustion chamber. The straw highly-efficient combustion furnace has the advantage that the structure is reasonable, the energy of the straw can be effectively utilized, and the combusti