The portable refractory air driven gunite shotcrete pump equipment uses compressed air to spray a certain proportion of refractory materials at a high speed to form a refractory layer on the surface of the sprayed masonry. Widely used, mainly applicable to: thermal gunning of refractory layers of industrial furnaces. It is mainly suitable for concrete spraying and support construction of tunnels, culverts, subways, hydropower projects, underground projects, mine roadways, highway slope protection, etc.