Abstract: “PISTOL FOR INTEGRATED ADMINISTERING A LIQUID AND A COMPRESSING AIR FLOW”, which is presents a main model and a constructive variant; the main model comprises a monoblock body (1.1) embodied with a pistol produced in metal which counts on a handhold (1.2), a trigger (1.3) and a compression button (1.4); the monoblock body (1.1) includes a channel passage (1.5) that begins in the handhold (1.2) that gets to an assembling housing (1.6) wherein there is a shutter device or valve (1.7) that is activated by trigger (1.3); channels (1.5) and (1.11) in the lower edge of hand (1.2), finish in threaded connections (1.16) and (1.17) which are connected to hose (1.18) and (1.19), wherein flow, respectively, liquid under pressure and compressed air; valves (1.7) and (1.13) present same basic function, differing from just what refers to employed shutters, a sphere (1.7A), in valve (1.7) and a disc (1.13A) in valve (1.13); the constructive variant comprises a monoblock body (2.