The invention belongs to the field of middle titanium slag melting technology, specifically to a middle titanium slag blast furnace smelting method. The technical problems the invention object to resolve is to provide a middle titanium slag melting method in a medium-sized blast furnace, the method can have a better use of schreyerite resources to perform middle titanium slag melting, specifically adopting 25 - 30 parts of all-vanadium-titanium pellet ore, 65 - 70 parts of low-vanadium-titanium magnetite ore and 5 - 10 parts of lump ore as raw materials for smelting in blast furnace. Obtainedcast iron satisfies the quality requirements for further steelmaking, the furnace cinder dyadic alkalinity is 1.15 - 1.30, and can be used raw material of the composite powder. The method of the invention uses an appropriate charging stock structure in the blast furnace to reduce the sintering powder and to improve the air permeability, and makes full use of high cost-effective of schreyerite toeffectively reduce production costs.