Spark catcher for dust removal of blast furnace

The invention relates to the technical field of blast furnace casting house dust removal, in particular to a spark catcher for blast furnace dust removal, which comprises a barrel and an ash bucket, the ash bucket is positioned below the barrel along the gravity direction, the upper end of the ash bucket is connected with the lower end of the barrel, an air pipe is arranged in the barrel, an air inlet and an air outlet are arranged on the barrel, and the upper end of the air pipe is communicated with the air inlet. The lower end of the air pipe faces the ash hopper; a fireproof plate is arranged between the air pipe and the barrel and located below the air outlet, a plurality of airflow channels are formed in the fireproof plate, and all or part of the airflow channels are arranged in the gravity direction in a crossed mode. The spark catcher for dust removal of the blast furnace can be arranged at an inlet pipeline of a dust remover of a blast furnace casting house, on the basis that the internal resistance