Sintered permeable pavement slab and permeable pavement paving system

The utility model provides a sintered permeable pavement slab and a permeable pavement paving system. The pavement slab is of a semicircular cylindrical structure; the circumferential surface of the semicircular cylindrical pavement slab consists of a convex curved surface and a concave surface, and the convex curved surface is a semi-cylindrical surface of the pavement slab; the concave part surface is a surface on which the side surface opposite to the convex curved surface of the semicircular cylindrical pavement slab is positioned; a groove is formed in the middle of the concave part surface; and a bulge is arranged on the top surface of the pavement slab. The pavement slab is made of a semi-circular cylindrical special-shaped structure, when the pavement slab is used for paving a permeable pavement, the permeable pavement slab bodies can be positioned in different symmetrical modes that convex curved surfaces are tangent to each other or concave surface planes are in butt joint to form a variable combine