The invention discloses a heavy-aluminum keel ceiling which comprises a blind plate device which comprises a blind plate, a cross joint, four T-shaped joints, four L-shaped joints, six transverse keels, six longitudinal keels and a level adjuster. The L-shaped joints are arranged at four corners of the blind plate device, two joints of on each L-shaped joint are connected with one transverse keel and one longitudinal keel respectively, and the T-shaped joints are positioned between each transverse keel and the corresponding longitudinal keel on a same straight line. The blind plate, the cross joint, the T-shaped joints, the L-shaped joints, the transverse keels and the longitudinal keels are designed in a combined manner, so that convenience is brought to mounting and demounting of the blind plate device, space can be beautified, and air particles in the space are isolated effectively; by adding the level adjuster, all keels are ensured to be at a same horizontal position.