Composite smelting method for preparing TiAl-based alloy bar in short process

The invention belongs to the technical field of non-ferrous metal smelting, and particularly discloses a composite smelting method for preparing a TiAl-based alloy bar in a short process, which comprises the following steps: 1) uniformly mixing sponge titanium and intermediate alloy, and pressing into an electrode block; (2) welding the pressed electrode block into a consumable electrode, and storing the consumable electrode in a drying oven; (3) preparing an intermediate cast ingot by using vacuum consumable arc melting and filling argon in the melting process, and storing the intermediate cast ingot in a drying oven for later use; and 4) carrying out magnetic suspension smelting on the intermediate cast ingot by using a cold-wall crucible, filling argon in the smelting process, casting the melt into a corresponding cast iron mold after the smelting is finished, carrying out heat preservation, carrying out furnace cooling to a set temperature, discharging from the furnace, and carrying out air cooling to the