Waste steel crushing and dust collecting system

The utility model discloses a scrap steel crushing and dust collecting system which comprises a floccule separation chamber, a cyclone dust collector, a cloth bag dust collector, an induced draft fan,an exhaust funnel and a PLC (programmable logic controller) control system, and the floccule separation chamber is hermetically connected with a crusher; the cyclone dust collector is positioned at the downstream of the floccule separation chamber in the process flow direction and is connected with the floccule separation chamber; the cloth bag dust collector is positioned at the downstream of the cyclone dust collector in the process flow direction and is connected with the cyclone dust collector; the induced draft fan is positioned at the downstream of the cloth bag dust collector in the process flow direction and is connected with the cloth bag dust collector; the exhaust funnel is positioned at the downstream of the induced draft fan in the process flow direction and is connected withthe induced draft fan; th