Nuclear waste storage well cover plate and storage well

The utility model discloses a nuclear waste storage well cover plate and a storage well comprising the same, the nuclear waste storage well cover plate comprises a cover plate body and a pipeline sampling mechanism, the pipeline sampling mechanism is arranged in the cover plate body and comprises a vertical pipe, a first bent pipe and a second bent pipe, the top end of the vertical pipe is connected to the top of the cover plate body, the first bent pipe is L-shaped, the horizontal end of the first bent pipe is communicated with the upper end of the vertical pipe, and the vertical end of the first bent pipe is communicated with the top of the cover plate body; the second bent pipe is in an L shape, the horizontal end of the second bent pipe is communicated with the lower end of the vertical pipe, and the vertical end of the second bent pipe is communicated with the bottom of the cover plate body. During sampling, the pipeline sampling mechanism can be directly used for sampling, the cover plate does not need