Aggregate vibrating screen

The utility model relates to the technical field of vibrating screens, and discloses an aggregate vibrating screen which comprises a box body, a first-stage screen mesh, a second-stage screen mesh, a third-stage screen mesh, a fixed rolling shaft, a cam assembly and a support. During use, the cam assemblies arranged below the first-stage screen, the second-stage screen and the third-stage screen drive the corresponding screens to move up and down in the box body, and meanwhile, the fixed rolling shaft is rotationally connected to the two supports and can move up and down along with the first-stage screen. By the adoption of the structure, aggregate on each stage of screen cloth can be driven through vertical displacement of each stage of screen cloth when the whole vibrating screen conducts vibrating screening work, so that the aggregate is prevented from being clamped in screen holes of each stage of screen cloth, and the fixed rolling shaft is installed on the first-stage screen cloth through the support an