Desulfurization device for low-temperature flue gas such as coal charging and coke discharging of coke oven

The utility model relates to a coke oven desulfurization device, in particular to a desulfurization device for low-temperature flue gas such as coal charging and coke discharging of a coke oven. Comprising a powder bin, a metering system, a material conveying fan, a heating decomposition system and a conveying fan which are sequentially connected together through a pipeline, and the output end of the conveying fan is connected with an output pipeline; one end of the heating decomposition system is further communicated with a flue gas input pipeline, a feeding device is further arranged on the upper portion of the powder bin, and the powder bin is in a funnel shape; sodium bicarbonate is adopted as a desulfurizing agent, the sodium bicarbonate is decomposed into high-activity and high-specific-surface-area Na2CO3 at high temperature, the desulfurization efficiency can be improved under the condition of no reactor and no reaction time, and the SO2 emission index can reach the standard. 本实用新型涉及焦炉脱硫装置，具体涉及一种用于对焦炉