The invention discloses an environment-friendly building rubbish efficient separating device which comprises a separating barrel, a supporting frame, a fixed support and vibration transmitting shafts.The separating barrel is installed on the supporting frame, the interior of the separating barrel is provided with a first screening disc and a second screening disc, and the first screening disc isarranged over the second screening disc; one side of the exterior of the separating barrel is provided with a first vibration motor opposite to the first screening disc, the first vibration motor is connected with the first screening disc through the vibration transmitting shaft, and the other side of the exterior of the separating barrel is provided with a first guide disc opposite to the first screen disc; and one side of the exterior of the separating barrel is provided with a second vibration motor opposite to the second screening disc, the second vibration motor is connected with the second screen disc through the vibration transmitting shaft, the other side of the exterior of the separating barrel is provided with a guide disc opposite to the second screen disc, and the first vibration motor and the second vibration motor are arranged on a supporting plate welded to the outer wall of the separating barrel. The environment-friendly building rubbish efficient separating device is high in separating accuracy and good in environmental protection property.