Dry flue gas denitration, desulfurization and dust removal integrated device

The utility model provides a dry-type flue gas denitration, desulfurization and dust removal integrated device, which belongs to the technical field of flue gas purification and comprises a box body, a support frame is fixedly connected inside the box body, a filter screen is arranged above the support frame, and the filter screen is arranged above the box body. The top of the box body is fixedly connected with a cover plate through screws, one side of the top of the box body is fixedly connected with a transverse pipe, the transverse pipe is communicated with the box body, the top of the transverse pipe is provided with a material box, the two sides of the transverse pipe are provided with spray guns communicated with the material box, one end of the transverse pipe is provided with a dust collection bag, and the other end of the transverse pipe is provided with a dust collection bag. Threaded rods are rotationally connected to the two sides of the bottom of the supporting frame. According to the dry-type fl