Efficient heating furnace

The utility model discloses an efficient heating furnace belongs to heating equipment technical field, the heating stove include the furnace body with set up in the furnace body and with the furnace of smoke exhaust passage intercommunication, be equipped with the water jacket between furnace body and the furnace, the water inlet and the delivery port that set up on the furnace body all communicate with the water jacket, the key is: the sleeve is add in the smoke exhaust passage periphery to water jacket and back water jacket before addding the baffle separate the water jacket become in the water jacket, forms water carrying chamber between sleeve and furnace fixed connection and sleeve and the smoke exhaust passage, water carrying chamber top, bottom respectively with back water jacket, preceding water jacket intercommunication, water inlet and back water jacket intercommunication, the delivery port communicates with preceding water jacket top. Through changing water jacket structure for form in the water ja