Linear vibrating screen

The utility model relates to a linear vibrating screen which comprises a linear vibrating screen body, a swing screening mechanism and a linear pushing mechanism, the linear vibrating screen body comprises a fixed screen, and the swing screening mechanism and the linear pushing mechanism are arranged above the fixed screen. The swing screening mechanism and the linear pushing mechanism are fixedly connected with the linear vibrating screen body, the swing screening mechanism comprises a swing screen, the diameter of screen holes of the swing screen is larger than that of screen holes of a fixed screen below, the linear pushing mechanism comprises a reciprocating push rod, the reciprocating push rod is located above the fixed screen, and the reciprocating push rod is located above the fixed screen. Primary screening can be carried out before screening of the fixed screen, and screening is carried out again through the fixed screen; and the ore blocks can be pushed, so that the ore blocks smaller than the scree