The invention provides a cooling system for a long distance coal face. A refrigerating unit is connected with a refrigerating circuit, the refrigerating circuit is arranged along belt gateroads to the coal face, an emulsion box is connected with a hydraulic bracket located on the coal face through an emulsion circuit, the belt gateroads and the coal face are provided with dust-proof water pipelines, and a plurality of spraying devices are arranged on each dust-proof water pipeline. The refrigerating circuit is connected with a first refrigerating branch circuit, a second refrigerating branch circuit and a third refrigerating branch circuit, the first refrigerating branch circuit penetrates through the emulsion box, a heat exchanger is connected with the second refrigerating branch circuit and the dust-proof water pipelines, and the third refrigerating branch circuit is connected with an air cooler. The cooling system for the long distance coal face has the beneficial effects that existing resources of a mine are used fully, a cooling mode of ''emulsion cooling + dust-proof water cooling + air cooler cooling'' is designed, the capital investment and later maintenance costs are reduced, the cooling capacity is released from multiple positions and directly acts on a heat source, the utilization rate of the cooling capacity is improved, and the long distance coal face cooling effect is ensured.