Novel fine material screening machine

The invention provides a novel fine material screening machine. The novel fine material screening machine comprises a screening box combination and a rack combination. The invention provides a novel fine material screening machine which is formed by mutual cooperation of a screening box assembly, a rack assembly, an oversize and undersize material receiving groove, a rear supporting rack, a rubber shearing spring component, a junction box, a cable, a feeding box, a water spraying device, a vibration reduction rubber block, a foundation bolt, a square inclined washer for channel steel, a nut, a grounding label, a hexagon head bolt and a grounding flexible wire. The screen box is arranged in a multi-layer mode, and the outer surface of the screen box is integrally sprayed with a wear-resisting polyurethane coating and bonded with a wear-resisting rubber plate. The screen performs linear vibration along with the screen box; each layer of screen box is used for feeding independently, and material distribution is