The antistatic flame-retardant polyethylene composition consists of high density polyethylene 20-45 weight portions, antistatic polyethylene agglomerate 30-40 weight portions, and flame-retardant polyethylene agglomerate 25-40 weight portions. The antistatic polyethylene agglomerate includes two kinds of conducting carbon black of different specific surface areas and processed with processing agent, and has synergistic antistatic and flame-retardant performance, excellent machining performance and mechanical performance. The flame-retardant polyethylene agglomerate is composite flame retardant comprising halogen-containing organic compound and bromobenzene ether as main flame retardant and Sb2O3 as synergist and smoke suppressor. The composition has excellent antistatic performance, flame retardant performance, machining performance and mechanical performance, and is used in producing pipes in coal mine.