The invention discloses a multi-arm type automatic rotating
sprayer which comprises a
stator, a rotating head rotationally connected to the
stator, multiple nozzles and at least one power
nozzle. The rotating head is provided with one fluid inlet and multiple fluid outlets. Each
nozzle is installed on the rotating head by corresponding to one corresponding fluid outlet, and the axis of each
nozzle coincides with the axis, in the height direction, of the rotating head and / or inclines relative to the axis, in the height direction, of the rotating head by a certain angle. The power nozzles are arranged on the rotating head by corresponding to the fluid outlets, and the axes of the power nozzles are perpendicular to or oblique relative to the axis, in the height direction, of the rotating head. The multiple nozzles are divided into at least two
layers in the height direction of the rotating head, wherein the included angles formed by the axes of every two
layers of nozzles and the axis, in the height direction, of the rotating head are different; the solution spraying directions of the nozzles located on different
layers are in a mutually-staggered manner, the nozzles conduct all-directional solution spraying and atomizing to the exterior from multiple angles, spraying blind areas cannot exist; and larger acting force is generated by the multiple power nozzles to drive the rotating head to do high-speed movement, and the atomization effect of the nozzles is improved.