1. Water well drilling: Pneumatic water well drilling rigs are mainly used for drilling and exploration of water wells. They can be used in groundwater resource exploration, well construction and maintenance, and more.

2. Mine exploration: Pneumatic water well drilling rigs can also be used in mine exploration work, such as prospecting for ore layers and finding mineral deposits. They allow geological exploration and drilling prior to underground mining operations.

3. Geological survey: Pneumatic water well drilling rig can be used for geological survey and geological survey. They can be used to obtain subsurface geological information, collect core samples, and more.

4. Groundwater level monitoring: Pneumatic water well drilling rigs can be used for drilling and maintenance of groundwater level monitoring wells. These wells are often used to monitor changes in groundwater levels and to manage groundwater resources.