Novel steel structure curtain wall interlayer fireproof plugging system structure

The invention relates to the field of building curtain wall interlayer fire prevention, in particular to a novel steel structure curtain wall interlayer fireproof blocking system structure which comprises a building curtain wall, an upper cross beam, a lower cross beam and a stand column arranged on the side of the upper cross beam and the side of the lower cross beam are arranged on the inner side of the building curtain wall, and the space between the stand column and the building curtain wall is filled with a vertical fireproof cotton layer. Wherein the upper cross beam is fixed with the building structure main body, an upper fireproof cotton layer is filled among the upper cross beam, the stand columns and the building structure main body, and the upper and lower surfaces of the fireproof cotton layer are clamped and wrapped by steel plates; a main body structure steel beam is arranged below the building structure main body, a lower hanging steel plate is arranged at the bottom of the main body structure