Stone filtering device

The invention relates to the technical field of constructional engineering auxiliary equipment, in particular to a stone filtering device which comprises a housing, a screen drum, a driving mechanism and a through hole mechanism. The through hole mechanism comprises a mounting column, a plurality of groups of through plug rods and an adjusting assembly; the axial direction of the mounting column is parallel to the axial direction of the screen drum, and the mounting column is rotationally connected with the housing; the multiple sets of through plug rods are distributed in the circumferential direction of the mounting column, each set of through plug rods are distributed in the axial direction of the mounting column, the through plug rods are arranged in the radial direction of the mounting column, and the through plug rods can be inserted into screen holes in the screen drum; according to the designed stone filtering device, large-particle-size impurities mixed in mortar are conveniently filtered through a s