These two litotes express that he will be the opposite of rich, that he will be poor. AT: "he will be poor; all his money will disappear" (See: [[rc://en/ta/man/translate/figs-litotes]])
Here the flame represents God's judgment and the drying up of his stalks represents either the fact that his possessions disappear, or that he will die. AT: "God will take everything he owns away, like a fire dries out the moist branches of a tree" (See: [[rc://en/ta/man/translate/figs-metaphor]])