Civil engineering vibrating screen with good separation effect

The utility model discloses a civil engineering vibrating screen with a good separation effect, which comprises a support, a discharge plate is obliquely arranged on the inner side of the middle of the support, a rolling screen is arranged at the top of the support, a vibrating screen is arranged on the inner side of the middle of the support, one end of the rolling screen is connected with a rotating shaft, and the middle of the rotating shaft is sleeved with two groups of bearing seats. One end of the rotating shaft is sleeved with a first chain wheel, a motor is fixedly arranged on one side of the top end of the support, the output end of the motor is sleeved with a second chain wheel, and the first chain wheel and the second chain wheel are connected through a chain. A double-layer screening mode of the rolling screen and the vibrating screen is adopted, and the diameter of the screen holes of the rolling screen is larger than that of the screen holes of the vibrating screen, so that large-particle impuri