The utility model discloses a dry slag sampling device for a power station boiler with a dry-type slag removal system. The dry slag sampling device comprises a long-handle spoon A and a long-handle spoon B which are connected with each other by virtue of a hinge, wherein the top ends of the long-handle spoon A and the long-handle spoon B are respectively a hemi-spherical spoon body A and a hemi-spherical spoon body B matched with each other; suck-back prevention teeth are uniformly arranged in the spoon body A and the spoon body B; a tension spring is arranged between a spoon handle of the long-handle spoon A and a spoon handle of the long-handle spoon B. The power station boiler dry slag sampling device disclosed by the utility model can be used for effectively preventing large slag samples from being absorbed, is short in sampling time, has representativeness, can meet the laboratory test needs by virtue of one-time sampling, is convenient to use, and is specially used for sampling of the power station boiler with the dry-type slag removal system.