Universal tandem type integrated total iodine sampling filter element

The utility model discloses a universal tandem type integrated total iodine sampling filter element which comprises a filter element upper cover plate, a filter element support and a shell, the filter element upper cover plate is inserted into the top of the interior of the filter element support and the shell, a groove is formed in the middle of the bottom of the interior of the filter element support and the shell, an O-shaped ring E is arranged at the bottom of the interior of the groove, and the O-shaped ring E is connected with the filter element support and the shell. An iodine box is arranged at the top of the O-shaped ring E, an O-shaped ring D is arranged at the top of the iodine box, and an O-shaped ring C is inserted into the edge of the bottom in the filter element support and the shell; according to the utility model, an integrated structure of a plurality of filter membranes is adopted, three results are obtained by one-time sampling under the premise of ensuring the same gas flow, the same coll