Full-automatic following harvester and grain collecting system

The utility model relates to a full-automatic following harvester and a grain collecting system. Vehicle body, walking mechanisms are mounted on two sides of the vehicle body; a harvesting mechanism is mounted at the front end of the body; a screening mechanism and a grain storage bin are arranged in the vehicle body; a grain spraying mechanism connected with the grain storage bin is arranged on one side of the grain storage bin; the vehicle body is provided with a first driving piece through a first support. The first driving piece is connected with the turntable; the turntable can be drivento rotate in a horizontal plane; the turntable is connected with a second driving piece through a second bracket; the second driving piece is connected with the grain spraying barrel; the grain spraying cylinder can be driven to rotate in a vertical plane; the grain spraying barrel is connected with the grain spraying mechanism through a hose, the grain spraying mechanism can drive grain in the grain storage bin to enter