Abstract: Based on the long-time scientific research practice in mine ventilation, the authors discuss and summarize the experiences in the utilization of discarded natural resources and artificial resources in underground metal mines.The so-called discarded resources refer to the discarded artificial resources and natural resources that have not been utilized; the so-called discarded artificial resources refer to the engineering works artificially made and discarded after being utilized such as old shafts, lanes and mined-out area; and the waste natural resources here refer to the inherent natural wind pressure, geothermal effect, etc.The paper mainly presents the experiences in how to utilize the natural wind pressure as auxiliary to the main fan; how to utilize the discarded old shafts and lanes and mined-out areas for reducing the resistance in ventilation; and how to make use of the ground temperature to pre-heat or pre-cool the inlet air so as to realize the prevention of frozen air-inlet shaft in winter and the temperature drop at underground working faces in summer, which can be of important significance to a full rational utilization of the existing resource for energy saving in mine ventilation.

Key words: Abandoned resources, Natural resource, Discarded resources, Rational utilization, Energy saving