Sealed type waste heat recoverable box type multipurpose furnace

The utility model relates to the field of box type multi-purpose furnaces, in particular to a sealed type waste heat recoverable box type multi-purpose furnace, a mounting mechanism is fixedly arranged on one side of the top of a multi-purpose furnace body, the top of the mounting mechanism is downwards provided with a connecting cavity, and the end part of an in-furnace heat conduction pipe in the multi-purpose furnace body is positioned in the connecting cavity; and a connecting plate is adaptively mounted at the top of the mounting mechanism, and an out-of-furnace heat conduction pipe is fixedly inserted into the connecting plate, adaptively inserted into the connecting cavity and communicated with the in-furnace heat conduction pipe. According to the multi-purpose furnace, redundant heat in the multi-purpose furnace body can be transmitted into the external heat storage mechanism through the in-furnace heat conduction pipe and the out-furnace heat conduction pipe, the limiting block is inserted into the f