Rapidly paved double-layer composite pavement slab and use method thereof

The invention relates to a quick-paving double-layer composite pavement slab and a use method thereof, and the quick-paving double-layer composite pavement slab comprises a lower layer slab, an upper layer slab, a positioning plate, a positioning pin and a fixing pin. The use method comprises the following steps of: connecting the positioning plate and every three adjacent lower-layer plates together by using the positioning pins; the lower layer plate is laid; positioning plates and positioning pins at the middle positions of the laid lower-layer plates are removed firstly, all the upper-layer plates need to be evenly distributed on the three lower-layer plates, namely staggered joint lap joint is achieved, and fixing pins are inserted into embedded sleeves, aligned with the lower-layer plates, of the upper-layer plates; the positioning plate and the positioning pin which interfere with the second upper-layer plate continue to be removed, and the second upper-layer plate is laid; and according to the method,