Material-sucking flow guide box of carbon unit sucking discharging system

The invention relates to a material-sucking flow guide box of a carbon unit sucking discharging system. The flow guide box comprises a box body, and is characterized in that the bottom of the box body is provided with a material inlet connected with a material sucking pipe in a carbon block roasting system, one side of the box body is provided with a material outlet connected with a material box of the carbon block roasting system, the inside of the box body is provided with a detachable material stopping plate, and the lower portion of the material stopping plate and the wall of the box body together form a flow guide channel communicating the material inlet with the material outlet. The flow guide box has the advantages that the sectional area of the flow guide channel of the material-sucking flow guide box is larger than that of the material sucking pipe, the flow speed of filler in the material-sucking flow guide box is effectively reduced, meanwhile, by means of guide of an arc-shaped flow guide plate, t