Drainage road structure

The utility model discloses a drainage road structure which comprises a road main body and a drainage channel, the drainage channel is arranged inside the road main body, a grate is arranged at the top of the road main body, a pressing block is arranged at the lower end of the grate, a drainage opening is formed in the position, opposite to the lower portion of the grate, of the road main body, and the lower end of the drainage opening is communicated with the drainage channel. A filter cartridge is arranged in the water outlet, a mounting hole is formed in the periphery of the upper end of the filter cartridge, a mounting column is arranged on the inner side wall of the water outlet, a limiting structure and a positioning structure are mounted at the upper end of the mounting column, the pressing block penetrates through the mounting hole to be connected with the limiting structure, and the limiting structure abuts against the positioning structure. The limiting structure is perpendicular to the moving direc