Drainage filtering grating structure

The utility model relates to a drainage filtering grid structure which comprises a big-end-up frustum-shaped grid well and a grid cover, the grid well is a cylindrical body formed by interweaving a plurality of division bars vertically and horizontally at intervals, the lower portion of the grid well can be arranged in a drainage hole, and the grid cover is arranged at the upper end of the grid well in a covering mode. The grating well is erected on the holes, so that accumulated water can quickly enter the underground drainage pipeline from the grating holes, namely, the water discharge amount is increased, and some large-point impurities which are easy to block the drainage pipeline can be filtered outside by the grating well and cannot flow into the drainage pipeline, so that the water discharge amount is increased. The grating structure can also effectively remind pedestrians and drivers of water outlets so that the pedestrians and the drivers can bypass and avoid in advance, and the grating structure has