According to the green geological exploration work standard， the borehohe drilling should be given priority to modular， lightweight， miniaturized and highly integrated drilling equipment. Based on the demand for rapid verification of strategic mineral survey drilling， the development of a portable drilling rig with air circulation technology can reduce the volume， weitht and power consumption of the drilling rig， reduce manpower， alleviate the green technical problems faced by traditional drilling， and support the evaluation and optimization of exploration blocks. This paper mainly introduces the structure form， technical parameters， technological method and test of portable air drill. A set of drilling technology for quick verification of mineral resources in shallow covered areas is preliminarily summarized to realize green exploration.