Dual-water-seal and dual-gas-seal clean floor drain for pharmaceutical workshop

The invention relates to a dual-water-seal and dual-gas-seal clean floor drain for a pharmaceutical workshop. The floor drain comprises a floor drain body. A partition plate is arranged in the floor drain body which is internally provided with a communication cup penetrating through the partition plate. An upper water seal cylinder and a lower water seal cylinder are arranged in the floor drain body. The upper water seal cylinder is located at the upper portion of the partition plate and reversely arranged outside the communication cup in a sleeving mode. Gaps are formed between the upper water seal cylinder and the communication cup and between the upper water seal cylinder and the partition plate to form sewage channels. The lower water seal cylinder is located at the lower portion of the partition plate and placed right outside the communication cup in a sleeving mode. Gaps are formed between the lower water seal cylinder and the partition plate and between the lower water seal cylinder and the communicati