Solid powder sampler, automatic sampling device, equipment and method

The invention discloses a solid powder sampler, an automatic sampling device, equipment and a method. The sampler comprises a fine sampling piece and a coarse sampling piece. The fine sampling piece is provided with an inner sampling end and an inner sampling hole, and one end of the inner sampling hole is communicated with the outside from the inner sampling end. A gas interface is formed in the fine sampling piece, is communicated with the inner sampling hole and is used for externally connecting gas equipment. The coarse sampling piece comprises an outer carrying piece and an outer powder moving piece, the outer powder moving piece is provided with an outer sampling hole, the fine sampling piece partially extends into the outer sampling hole and is in sliding connection with the outer sampling hole, the inner sampling end is located in the outer sampling hole, and the part, not in sliding connection with the fine sampling piece, of the outer sampling hole is matched with the inner sampling end to form a co