The minable coal seam in this mine field has stable coal quality and single coal type. Except that coal seams 1, 3, 4 and 8 are locally deteriorated into coking coal, lean coal, lean coal and anthracite or natural coke due to magma intrusion, the rest of the coal seams belong to medium ash, low sulfur to ultra low sulfur, low phosphorus to ultra low phosphorus, high volatile matter, medium calorific value, weak caking property, high melting to refractory ash and rich oil to high oil gas coal, which can be mainly used as power coal, coking coal blending and chemical coal.