The invention discloses a filter pipe for suction and discharge of biogas-containing stratum gas. The filter pipe for suction and discharge of biogas-containing stratum gas comprises a pipe body and a gas outlet pipe. The gas outlet pipe is communicated with the top of the pipe body. An outer side of an upper part of the pipe body is provided with multiple spacing steel rings. A water-swellable rubber ring is arranged between each adjacent two of the spacing steel rings. A lower part of the pipe body is provided with multiple apertures. An outer side of the lower part of the pipe body is provided with a filtering component. The filtering component is covered on the multiple apertures. The filter pipe for suction and discharge of biogas-containing stratum gas can plug effectively a gap between the filter pipe and a wall of a drilled hole, can solve the problem that slurry can be ejected from a drilled hole in a biogas-containing stratum, can filter sediment effectively and fast, has a simple structure and a low cost, and is convenient for installation.