The utility model relates to the technical field of
building construction dust falling, and discloses a
building construction management environment-friendly dust falling device which comprises a base, a rotating shaft is rotationally installed in the middle of the top of the base, a second U-shaped piece is fixedly installed on the top of the base, and a
liquid storage tank is fixedly installed at the upper end of the rotating shaft. First U-shaped pieces are symmetrically and fixedly connected to the two sides of the front portion and the rear portion of the
liquid storage box, a plurality of atomizing nozzles are arranged in the first U-shaped pieces, a
servo motor is fixedly installed on one side of a second U-shaped piece, and a reciprocating lead screw and a sliding block are rotationally installed in the second U-shaped piece and slidably connected to the interior of the second U-shaped piece. According to the utility model, one
servo motor is used for driving the atomizing
nozzle to rotate in a reciprocating manner in the horizontal direction and driving the spraying angle of the atomizing
nozzle to rotate in a reciprocating manner, so that the dust falling spraying range is greatly enlarged, a pipeline cannot be wound, a large amount of water is not needed for dust falling in the same range, and the
environmental protection property is realized.