Coal miners are generally divided into: coal mining, tunneling, ventilation, electromechanical, transportation and so on.

Coal mining is carried out in the mining face, which is more dangerous than other types of work.

Mining is responsible for the development of mines, that is, coal mining and road construction.

Ventilation is responsible for underground airflow to ensure that the gas does not exceed the standard.

Electromechanical equipment is the equipment to ensure underground safety.

Transportation is to ensure the smooth transportation of coal and excavated gangue from the coal mining face to the ground.