Efficient settling tank capable of effectively reducing solid content

The utility model discloses an efficient settling tank capable of effectively reducing solid content. The settling tank comprises a settling tank body, a conveying pipe, a connecting pipe and a discharging pipe, the left end and the right end of the connecting pipe are fixedly connected with the right end of the conveying pipe and the left end of the discharging pipe correspondingly. The right side of the settling tank body is fixedly connected with a base; the connecting pipe is fixedly connected to the top of the base; a motor is embedded in the back surface of the inner wall of the connecting pipe; fan blades are fixedly connected to an output shaft of the motor in a sleeving mode, the fan blades are located in the connecting pipe, the output shaft of the motor penetrates through the connecting pipe and extends to the front face of the connecting pipe, the surface of the output shaft of the motor is fixedly connected with a leather roller in a sleeving mode, the leather roller is located on the front face