The utility model discloses a gravel filter is pasted to light, including pasting gravel filter body, gravel bed is pasted to its middle part chimney filter for taking the water hole in the chimney filter and on at least one wall in the outer wall, the subsides gravel bed be walnut shell granule filter material layer. Its gravel bed fragility is low, intensity is high, and is flexible good, the porosity is high, and the permeability is good, and is anticorrosive, long service life, the whole light in weight of filter can be used to horizontal well, directional well, hydrogeology reconnaissance well and fields such as peupendicular hole construction and tubular well restoration, is that a neotype tubular well pastes the gravel filter, has solved the problem that the horizontal well was laid the strainer difficulty and was added gravel cheng jing.