Mixed high-carbon low-iron basic converter smelting process

The invention provides a mixed high-carbon low-iron alkaline converter smelting process, which is characterized in that smelting formulas are respectively set for materials to be smelted according to the characteristics of the materials, the mixed materials are subjected to an alkaline high-temperature smelting process of high-proportion scorched particles, low-proportion scrap iron and sodium carbonate, the reduction recovery rate of lead, antimony and tin is improved, and a mode of an initial discontinuous rotary kiln and a later continuous rotary kiln is adopted. Controllable ordered combustion of combustible materials in the furnace is achieved, the modes of slag suspension type small-hole lead discharging and large-hole slag discharging after high-temperature smelting are adopted, separation of liquid lead and slag is facilitated, complex mixed materials can be treated, the problems that multiple kinds of overstocked materials are difficult to smelt, consumed time is long, smoke is large, detonation is p