Stove is emptyd to air preheating -type crucible

The utility model discloses a stove is emptyd to air preheating -type crucible, characteristics are provided with closed air preheating chamber between furnace body and the chimney, the inner wall of air preheating chamber is provided with closed cold air and flows in the intermediate layer, below in the air preheating chamber is provided with closed hot -air circulation intermediate layer, the exhaust port department that just lies in furnace in the air preheating chamber is provided with closed hot -air outflow intermediate layer, the cold air flows into between interbedded upper portion and the hot -air circulation intermediate layer and the hot -air circulates vertically is provided with a plurality of air heat exchange tubes respectively side by side between intermediate layer and the hot -air outflow intermediate layer, the cold air flows in interbedded bottom and is provided with cold air intlet, the cold air flows into between intermediate layer and the hot -air circulation intermediate layer and the hot -air circulates respectively through air heat exchange tube intercommunication between intermediate layer and the hot -air outflow intermediate layer, be provided with the hot -air export on the hot -air outflow intermediate layer, hot -air export intercommunication the burner tip, the advantage is high, the energy -concerving and environment -protective and compact structure of heat utilization efficiency.