Fireproof material mixing device with dust removal function

The utility model discloses a fireproof material mixing device with a dust removal function. The fireproof material mixing device comprises a material feeding device, a fireproof material mixing device and a dust removal device, wherein the material feeding device and the fireproof material mixing device are connected with the dust removal device through air pipes; the air pipelines are provided with manual or electric adjustment valves; dust of the dust removal devices is discharged into the fireproof material mixing device; air interfaces of the fireproof material mixing device are respectively formed in the top and a material outlet suspended hood; and the dust removal device and a draft fan are arranged on a bracket of which the height is the same as that of the top of the fireproof material mixing device. The fireproof material mixing device can prevent dust produced in a material feeding and discharging process from leaking and protect the production environment.