Factory direct sale refractory dry shotcrete spraying machine with air compressor in Qatar uses compressed air to spray a certain percentage of refractory material at high speed to form a refractory layer on the surface of the sprayed masonry. Due to its fast, efficient, and high engineering quality, the refractory dry shotcrete spraying machine is mainly suitable for concrete spraying, such as tunnels, culverts, subways, hydropower projects, underground projects, mining roads, highway slope protection, etc.