PZ-5B explosion-proof type spraying machine adopts a straight through type rotor bond material cavity, discharging smooth, efficient, time-saving and four elastic compensation pressure, good sealing effect, beside the machine less dust; the vulnerability of long life; PZ-5B explosion-proof type spraying machine using pneumatic conveying low pressure high speed vortex, overcome material conveying in bond, blocking the tube and the pulse from the discount, the material flow uniform; continuous and stable, new sprinkler head, material bending device, improve the effect of spray deposited and less resilience, the spraying layer quality. Can be used for tide spray, can also be used for dry spray and a type of fiber spray operation. PZ-5B explosion-proof type spraying machine is widely used in the engineering construction, mining, tunnel, tunnels, subway, hydropower engineering, underground engineering and coal high methane mine tunnel jet concrete construction operation; various types of industrial furnaces, the refractory lining spray form or repair; green construction for all kinds of slope protection, soil transport and injection.