Converter slag recycling method

The invention provides a converter roughing slag recycling method, and relates to the technical field of converter steelmaking, and the converter roughing slag recycling method comprises the following steps: S1, collecting converter roughing slag, adding waste steel into a waste steel tank, and then adding the converter roughing slag into the waste steel tank; s2, after converter tapping is completed and slag splashing converter protection is carried out, waste steel in a waste steel tank and converter roughing slag are added into a converter together, and molten iron is added; s3, blowing is started, and slagging materials are added for slagging during blowing; s4, at the blowing end point, an oxygen lance is lifted, slag is poured, an end point sample is taken, and tapping and deoxidation alloying are carried out after chemical components are qualified; s5, after converter tapping is completed, the converter is returned, nitrogen is switched, the oxygen lance descends, and slag splashing furnace protection