The pneumatic motor concrete spraying machine is a spraying equipment powered by compressed air. It converts air pressure energy into mechanical energy through the pneumatic motor to drive the slurry conveying mechanism and spray gun to work. It has a simple structure and is mainly composed of a pneumatic motor, a slurry conveying mechanism, a spray gun and a control system. It has the characteristics of good explosion-proof performance, adaptability to different slurries, easy operation, environmental protection and energy saving. It is widely used in the fields of wall spraying in the construction industry, spraying support of mine tunnels, spraying hillside surface protection, etc. It can efficiently and evenly spray the slurry on the working surface to meet a variety of spraying needs. It is a practical and high-safety equipment.