Abstract: A dyeing machine without rollers including a circular trough having a neck portion at an upper portion, a tail portion having an upper inlet extending upwardly and then vertically downwardly to form a lower outlet, a large tubular passage connected between a lower portion of the circular trough and the lower outlet of the tail portion, a small tubular passage connected between the neck portion of the circular trough and an upper inlet of the tail portion, a filtering board disposed on a bottom of the large tubular passage, a perforated panel mounted under the filtering board, a reservoir formed at a lower part of the large tubular passage and located under the perforated panel, a branch pipe fitted under the reservoir and communicated therewith, and a pump connected with a lower portion of the circular trough.