The invention discloses a moving environment-friendly type exterior-interior aerator which comprises a carrier, an
aeration mechanism, an axis rotation
assembly and a telescopic traction rod, wherein the carrier comprises two buoys, a hoop and a
steel tube belt
fastener; the
aeration mechanism is mounted between the two buoys through a support rod, and comprises a
host machine, a motor mounted above the
host machine through a support rod, an
oxygen-accumulating covering cylinder mounted outside the motor and air-collecting pipes mounted at the inner sides of the two buoys; an
exhaust pipe communicated with the
host machine is arranged at the bottom of the
oxygen-accumulating covering cylinder; the axis rotation
assembly is fixed on a foundation
pile in the center of a
water body through an
assembly base arranged at the bottom of the axis rotation assembly; two ends of the telescopic traction rod are connected with the carrier respectively through an L shaft assembly and the axis rotation assembly; and cables connected with the axis rotation assembly and the carrier are arranged on the telescopic traction rod. The aerator disclosed by the invention is applicable to
oxygenation of fish ponds with different water depths, can realize
oxygenation and fertilization, can improve
water quality, and can be used for treating
sewage and industrial waster water.