Double-layer hot-blast metallurgical furnace

A double-layer hot air metallurgical furnace relates to a smelting metallic similar furnace which moves furnace materials inside the furnace by the gravity, which is an improvement of the prior double-layer smelting furnace, wherein a water sleeve inner wall appears a hopper shape and comprises two parts of a rotary table face and a cylinder face, and two ventilating mouths send air to the furnace from the cylinder face. The utility model integrates the caking and the smelting to one furnace, is particularly suitable for smelting powder materials and each kind of muck, flotation the gangue, is able to realize the fully caking of the powder materials, lowers the coke ratio, saves energy, and increases the smelting efficiency.