Efficient duckweed fishing device

The utility model belongs to the field of duckweed treatment, and provides an efficient duckweed salvaging device which comprises a shell, a salvaging mechanism arranged in the shell and a collecting mechanism arranged on the shell. According to the duckweed collecting device, the motor drives the roller and the second gear to rotate clockwise, when the roller rotates, duckweeds on the water surface are fished and guided into the collecting mechanism through the conveying belt to be collected, and when the duckweeds are fished, the second gear drives the first gear to rotate anticlockwise through the meshing relation of the second gear and the first gear; the first gear can drive the transmission wheel to rotate together with the rotating shaft through the transmission belt, the rotating shaft can drive the stirring plate to rotate so as to stir the duckweed in front of the device to the conveying belt, the rotating shaft can stir the water surface while driving the stirring plate to rotate so as to drive the