DTH drilling rig is a new type of rock drilling equipment with high efficiency and wide applicability, widely used in small and medium-sized mines, water well borehole,rock engineering and other projects, especially suitable for rough terrain where other drilling vehicles cannot operate normally. It has a simple structure, easy operation, low price, energy saving, and also has the function of drilling vertical and horizontal blasting holes. Especially, the machine has a low center of gravity and easy disassembly, extremely convenient for movement and transportation