Simple pipeline pigging compensator

The invention provides a simple pipeline pigging compensator, and belongs to the technical field of pipeline reinforcement, the simple pipeline pigging compensator comprises a hollow cylindrical combination layer and a hoop, the combination layer is embedded in an annular groove of the hoop, and the combination layer comprises a lining layer, a pressure-resistant flexible layer and an outer coating layer from inside to outside in sequence; the compression-resistant flexible layer comprises n flexible steel belt connecting bodies which are axially arranged, and each flexible steel belt connecting body comprises m double-G type flexible steel belts; the double-G-shaped flexible steel belt comprises a head sub-steel belt, an inner hemming sub-steel belt, an outer cross beam sub-steel belt, a side beam sub-steel belt, an inner cross beam sub-steel belt, an outer hemming sub-steel belt and a tail sub-steel belt. For two adjacent double-G-type flexible steel belts in the flexible steel belt connecting body, the hea