Less-slag smelting method of titanium-containing molten iron converter

The invention belongs to the technical field of metallurgical steelmaking, and particularly relates to a less-slag smelting method of a titanium-containing molten iron converter. The lime utilization rate and the steel slag separation effect in each smelting stage are efficiently improved through operations such as titanium fixation, early slag rising and conventional gun pressing mode changing. Early slugging and early slagging in the earlier stage of smelting are promoted, the dephosphorization period is prolonged, the utilization rate of slag charge in the earlier stage of smelting is greatly improved, and deep dephosphorization is carried out by utilizing earlier-stage favorable conditions. Meanwhile, in the middle stage of smelting, slag making materials are efficiently utilized by effectively controlling splashing, drying returning and slag phase structures of all stages, the dephosphorization and desulfurization effect is guaranteed, meanwhile, slag material consumption reduction is promoted, and the s