The invention relates to a pollution DC voltage generator comprising high-voltage capacitors which are arranged in a spacing way. Insulating stand columns are arranged between the adjacent high-voltage capacitors. Silicon stacks which are connected in series via the insulating stand columns are arranged among the high-voltage capacitors. The high-voltage capacitors and the insulating stand columns are arranged in turn in a staggered way in a front-and-back direction so that S-shaped arrangement is formed. The silicon stacks are arranged on the high-voltage capacitors and the insulating stand columns in a profile V shape. Advantages of the extra-high voltage pollution DC voltage generator are that electric field distribution can be an overall elliptical shape, electric field distribution is enabled to be uniform and the possibility of discharge can be reduced; meanwhile, the size is reduced, space occupation is small and cost is low through the structural mode under the same voltage grade, and performance of the extra-high voltage pollution DC voltage generator can be guaranteed; furthermore, the extra-high voltage pollution DC voltage generator adopts lunule shielding so that the shielding effect is great.