Heating furnace with heat stored

The utility model relates to a heat stored heating furnace. The two sides of the heating furnace stove body (1) are respectively provided with an air heat accumulating box (2) and a gas heat accumulating box (3), and the air heat accumulating box (2) and the gas heat accumulating box (3) are connected with a draught stack (6) through a change-over valve (4) and an exit flue (5). The boiler tail of the heating furnace stove body (1) is provided with an auxiliary exit flue (7) which is connected with the boiler (8), and an auxiliary smoke evacuation adjustable valve (9) is provided between the auxiliary exit flue (7) and the boiler (8). The auxiliary draught stack (11) is connected with the boiler (9), and a smoke evacuation draught fan (10) is provided between them. The exhaust gas temperature is controlled through the smoke evacuation adjustable valve. When the exhaust gas temperature is over high, the smoke evacuation adjustable valve is required to turn down, and the furnace pressure becomes positive, and then the auxiliary smoke evacuation adjustable valve is required to turn up to make the boiler increase steam raising measuring. The utility model has the advantages of adjusting control furnace pressure flexibly, decreasing gas escape energy loss, prolonging the life of the stove body and accessory, realizing fast cooling and using heat energy to raise steam fully.