Primary lead concentrate utilization side-blowing reduction furnace and pulverized coal injection metering device

The invention discloses a primary lead concentrate utilization side-blowing reduction furnace and a pulverized coal injection metering device. The primary lead concentrate utilization side-blowing reduction furnace comprises a reduction furnace and a pulverized coal injection metering device, the discharge end of the pulverized coal injection metering device is connected with the top end of the reduction furnace and is used for injecting pulverized coal into the reduction furnace; a plurality of side blowing nozzles are installed in the reduction furnace from top to bottom, a smoke exhaust pipe is arranged at the top of the reduction furnace, and the reduction furnace further comprises a gas supply mechanism used for providing protective nitrogen for the side blowing nozzles. The air supply mechanism is connected with the air guide pipe and the lateral blowing nozzle, and a heat exchange mechanism is arranged between the air guide pipe and the smoke exhaust pipe and used for heating air in the air guide pipe;