Hierarchical screening device for geological mineral exploration

The utility model discloses a hierarchical screening device for geological mineral exploration, which comprises a vibrating device and a plurality of screening frames, the plurality of screening frames are arranged on the top wall of the vibrating device and are arranged in a stacked state, screening plates are arranged in the screening frames, and screening materials are screened through the screening plates and the vibrating device. Meanwhile, first clamping protrusions are arranged on the top walls of the screen frames, first clamping grooves are formed in the bottom walls of the screen frames, and the first clamping protrusions and the first clamping grooves are detachably matched, so that the screen frames are stacked up, the screen frames and the screen plates can be increased or reduced through detachable connection of the first clamping protrusions and the first clamping grooves, and the screening efficiency is improved. And meanwhile, the first clamping protrusions and the first clamping grooves are