Duckweed fishing device

The duckweed salvaging device comprises a ship body, a driving device for driving the ship body to move, salvaging arms and a storage bin, a containing bin is arranged in the ship body, a containing bin inlet is formed in the front end of the ship body, the bottom face of the containing bin is sunken downwards to form the storage bin, and the salvaging arms comprise the first salvaging arm and the second salvaging arm; the first salvage arm comprises a first connecting arm fixedly connected with the ship body and a first salvage plate hinged to the first connecting arm through a first steering engine, the second salvage arm comprises a second connecting arm fixedly connected with the ship body and a second salvage plate hinged to the second connecting arm through a second steering engine, and the first salvage plate and the second salvage plate are located at the front end of an inlet of the storage bin. And the duckweed is fed into the storage bin through reciprocating motion of the first salvage plate and t