Abstract: With the gradual increase of mining depth in Tianmashan Mine，on the basis of the same to⁃ tal air volume，the ventilation system is difficult to play a major role in ventilation and cooling，and the high-temperature air flow cannot meet the requirements of the on-site construction environment. In order to effectively solve the problem of high temperature heat damage in Tianmashan Mine in summer，through the measurement and analysis of the rock temperature，air temperature and water temperature of each middle section air inlet roadway，a set of long-distance roadway comprehensive cooling system is proposed based on the rock temperature and water temperature conditions of the upper roadway. The low-temperature water and rock temperature of the shallow long-distance roadway are fully contacted with the high-temperature air⁃ flow to achieve the effect of reducing the air temperature. The practice shows that the air temperature in the shallow long distance roadway and the deep main production middle section of Tianmashan Mine has been effectively reduced，which solves the high temperature problem of the summer inlet air flow in the mine and improves the environment of the deep workplace.

Key words: long distance roadway, high temperature heat damage, high pressure spray, low-tempera? ture water