Electric arcMicrowave-carbon-hydrogen coupled reduction furnace dustElectric arc furnace dust (EAFD) isMicrowave an importantElectric arc furnace dust secondaryTemperature resource rich in iron and zinc. This study proposed a novel microwaveMicrowave-carbon-hydrogen coupled reduction technique for treating EAFD, with an emphasis on the effect of reduction temperatureTemperature. The results indicated that under microwave irradiationMicrowave irradiation, increasing the temperatureTemperature enhanced the reduction performance of EAFD when both biocharBiochar and bio-syngas were used as reducing agents. However, excessively high temperaturesTemperature led to the formation of metallic ironMetallic iron shell and Fe3C, which adversely affected the reduction process. In addition to Ca2SiO4, Fe acted as one of the primary phases of the product and its particles rapidly aggregated and grew owing to the microwaveMicrowave “lens effect”. Optimal reduction performance of EAFD was achieved at 1050 °C, with total iron content (TFe) of 63.37 wt%, iron metallization degree (MD) of 97.18%, zinc volatilization percentage (VZn) of 99.60%, and lead volatilization percentage (VPb) of 84.94%.