Reciprocating wet concrete sprayer

The utility model discloses a reciprocating-type wet concrete sprayer, which is mainly composed of a hopper (1), a stirring device (2), a transition connecting pipe (3), a conveying pipe (4), a nozzle (5), a concrete distribution valve (6), a bottom frame (7), an electrical control device (8), a concrete pushing mechanism (9), a hydraulic system (12), a wind pressure conveying device (13), etc. The middle part of the hopper (1) is provided with the stirring device (2), and the lower part is provided with the concrete distribution valve (6). The utility model has the advantages of far concrete spray distance, continuous and adjustable pressure force and conveying capacity, uniform and continuous nozzle discharging, less loss, good sealing performance, no plaster leakage and no back flow. The utility model has small size and convenient operation, and can meet the need of the construction site.