The invention provides a multifunctional
impeller aerator for
aquaculture. The multifunctional
impeller aerator for
aquaculture comprises a boss, an
oil tank, a blocking block, a pull rod, a scale rod, a floating block, a spring, a reflector, a drawstring and a
copper bell, wherein the boss is arranged at the annular side surface of a motor, the
oil tank is mounted on the right side of the upper end surface of the boss, and the blocking block is assembled at the inner bottom of the
oil tank; the lower end of the pull rod is fixed at the middle of the upper end surface of the blocking block, the scale rod is assembled at the upper end of the oil tank, and the lower end of the scale rod runs through the oil tank and is connected with the floating block; the blocking block is disposed insidethe oil tank; and through the design, the addition amount of
gear oil can be controlled conveniently, the spring is mounted on the upper end surface of the floating block, the reflector is assembled on the upper end of the spring, and the drawstring is mounted on the outer surface of the reflector; and the
copper bell is assembled on the lower end of the drawstring through screws. Through the design, the function of bird repelling can be achieved, and the aerator has simple operation, convenient control on the addition amount of the
gear oil, a good bird repellent effect and high practicability.