Curtain wall glass roof system

The invention relates to the technical field of building curtain walls, in particular to a curtain wall glass roof system. Comprising a plurality of curtain wall units and a plurality of cleaning units, each cleaning unit is arranged between every two adjacent curtain wall units, each cleaning unit comprises a guide rail, a decoration panel, a driving assembly, a sliding seat, two mounting arms and two cleaning roller assemblies, in rainy days, the driving assemblies are started, and due to the fact that the output ends of the driving assemblies are connected with the sliding seats, the sliding seats are connected with the mounting arms; according to the automatic cleaning device for the curtain wall unit, the sliding seat is driven to slide on the guide rail, the position of the cleaning roller assembly is adjusted, meanwhile, the cleaning roller assembly is started, and due to the fact that the output end of the cleaning roller assembly is attached to the glass face of the curtain wall unit, the glass face