Concrete block capable of being grouted

The utility model relates to the technical field of concrete blocks, and particularly discloses a groutable concrete block which comprises a cover plate and a block body, a grouting opening used for grouting is formed in the top of the cover plate, no less than four sets of heat preservation layers are arranged in the block body, and the cover plate is arranged on the top of the block body. The building block comprises a building block body, a cover plate is arranged on the building block body, a grouting opening is formed in the building block body, a fixing piece used for fixing a heat preservation layer is arranged on the building block body, a sliding block is connected to the building block body in a sliding mode, a clamping block is connected to the sliding block, and a clamping piece used for fixing the cover plate through the clamping block is arranged on the building block body. The cover plate and the building block body can be fixed through the clamping pieces, slurry can be conveniently shaped whe