The invention discloses underground tunnel construction equipment. The underground tunnel construction equipment structurally comprises a hopper, a pneumatic oscillator, a meter box, a slurry sprayinghead, a shell, a slurry spraying head fixing device, a wind path, rail wheels, a fixing frame, a fixing face plate and a rotor body; the meter box and the shell are located on the same horizontal line and both mounted on the fixing frame; the fixing face plate is arranged on the fixing frame; the rotor body is fixedly arranged on the fixing face plate and mechanically connected with the hopper; and the slurry spraying head fixing device is mounted in the shell. Through the joint effect of a fixing mechanism, a central rotating mechanism, a first rotating mechanism, a manual starting device, an air cylinder driving device, a first rotating mechanism driving device and a second rotating mechanism, the spraying direction of the slurry spraying head can be changed according to the actual demands, manual slurry spraying is not needed, manpower input is reduced, and safety accidents in the slurry spraying process are avoided.