Tower crane spraying device with adjustable nozzle angle

The utility model discloses a tower crane spraying device with an adjustable nozzle angle, which is provided with a tower crane frame, a fixed box is fixed at the upper end of the tower crane frame through a bolt, and fan blades are mounted in the fixed box; comprising a gas conveying pipe, one end of the gas conveying pipe is fixed to the side face of a fixing box, the other end of the gas conveying pipe is fixedly connected with the side face of a tower crane frame, and a fixing cavity is formed in the tower crane frame; the flow slowing block is fixedly installed on the lower end face of the protection plate, a water conveying pipe penetrates through the interior of the flow slowing block, and a fixing hole is formed in the water conveying pipe on the inner side of the flow slowing block; and the spraying head is fixedly installed at the bottom of the flow slowing block, a fixed rod is fixed to the side face of the flow slowing block, and the outer side of the fixed rod is sleeved with a movable plate. Acc