Building waterproof roof structure

The utility model discloses a building waterproof roof structure, and relates to the technical field of building waterproof roofs, in particular to a building waterproof roof structure which comprises supporting legs, supporting leg connecting blocks are fixedly connected to the upper surfaces of the supporting legs, and a first unit plate and a second unit plate are installed on the upper surfaces of the supporting leg connecting blocks. A first inserting block is fixedly connected to one side face of the first unit plate, a first inserting groove is formed in one side face of the second unit plate, a sealing cover is detachably connected to the upper surface of the joint of the first unit plate and the second unit plate, and a second inserting block is fixedly connected to the lower surface of the sealing cover. According to the utility model, through the arrangement of the first plugging blocks and the first plugging grooves, the purpose of rapid installation is achieved, and through the arrangement of the