Gravel sorting machine for constructional engineering

The invention relates to the technical field of constructional engineering, and discloses a gravel sorting machine for constructional engineering, which comprises a crushing device, a sorting device and a conveying device, and by arranging a sorting roller, the sorting of stones and crushed gravels can be realized; through the arrangement of the barrier ring, the separation of stones and crushed gravels is realized by utilizing inertia difference and volume difference, so that the stones and the crushed gravels are not mixed with each other; by arranging a limiting fixer, the position of the sorting roller is limited when the sorting roller rotates, and the sorting roller can sort stones and crushed sand; through the arrangement of the first screening holes, stone blocks with different crushing conditions can be screened; and by arranging the first transmission belt, the stones which are not fully crushed can be crushed for multiple times until the stones meet the required size. 本发明涉及建筑工程技术领域，且公开了一种建筑工程用碎石分选机