Blast furnace stokehole dust removal pipeline

The utility model relates to a blast furnace stokehole dust removal pipeline, which comprises a pipeline, the middle part of the pipeline is provided with a reducing part, and the inner diameter of the reducing part is larger than that of the pipeline; the cooling part is arranged in the reducing part; the ash discharge pipeline is arranged at the bottom of the pipeline; when dust-containing flue gas enters the pipeline and impacts the cooling part, the cooling part cools the dust-containing flue gas, and dust is deposited at the bottom of the pipeline and discharged through the dust discharging pipeline; the dust collector effectively solves the problem that high-temperature and high-flow-speed dust-containing airflow is sucked into the dust collector, the filter bag is burnt and damaged, and emission exceeds the standard, on one hand, dust is prevented from being deposited in a pipeline, and the service life of the pipeline is prolonged. 本实用新型是一种高炉炉前除尘管道，包括：管道，其中部设置有变径部，所述变径部的内径大于所述管道的内径；冷却部，其设置在所述变径部内；排灰管道