Vanadium-nitrogen alloy heating furnace

The utility model discloses a vanadium-nitrogen alloy heating furnace, and relates to the technical field of iron ore smelting. Comprising a sintering furnace, a heat exchange box, a water tank, a water pump, heat exchange pipes and a ventilation mechanism. A ventilation mechanism is fixedly connected to the bottom of the heat exchange box, and a spirally coiled heat exchange pipe is fixedly connected to the interior of the heat exchange box; two ends of the heat exchange tube are connected with the water tank; the ventilation mechanism comprises a ventilation pipe, a ventilation opening, an impeller and a filter screen; the ventilation pipe is fixed in the heat exchange box through a support rod, a plurality of ventilation openings are formed in the ventilation pipe, a filter screen is fixedly connected between the ventilation pipe and the heat exchange pipe in the heat exchange box, and an impeller is fixedly connected between the filter screen and the heat exchange pipe. The device can realize recovery of