Double-slag converter process for producing high carbon low-phosphorus molten steel

The invention discloses a rotary furnace technique to manufacture high-carbon low-phosphor molten steel, which is characterized by the following: transmitting high-silicon high-phosphor molten iron into rotary furnace; blowing through gun-change and oxygen-change flow operation; removing phosphor first; pouring rich phosphoric slag at blowing time; adjusting terminal temperature and terminal carbon.