Smelting furnace for metal casting

The utility model discloses a smelting furnace for metal casting, which relates to the technical field of metal processing equipment and comprises a smelting furnace body, a movable joint is fixedly mounted on the back of the smelting furnace body, a heating cavity is arranged in the middle of the smelting furnace body, and a crucible is sleeved in the heating cavity. A baffle located on the outer side of the heating cavity is fixedly mounted at the top of the smelting furnace body. According to the smelting furnace for metal casting, through matched use of the sleeving base, the spring and the clamping block, when a crucible is placed in the smelting furnace for metal casting, a worker can stir a stirring piece above the clamping block, drive the clamping block to retract into the sleeving base and compress the spring to completely expose the heating cavity, and the clamping block is loosened after the crucible is placed in the heating cavity; when the crucible is taken out, the clamping block can be reset u