Same layer drainage sealed floor drain structure

The invention provides a same layer drainage sealed floor drain structure. The structure comprises a floor drain bottom box, a water sealing pipe arranged in the floor drain bottom box and a floor drain cover arranged on the top of the floor drain bottom box. The side part of the floor drain bottom box is provided with a water outlet. The top of the floor drain cover is provided with a water inlet. An n-shaped drainage channel is formed between the water inlet and the drain. The drainage channel is surrounded by the floor drain bottom box, the water sealing pipe and the floor drain cover. By adopting above arrangements, the structure can change the shape of an original water-sealed floor drain, and change an elbow type water-sealed floor drain to a vertical type water-sealed floor drain. According to the connectivity and the self-sealing property of water, the problem of odor is effectively solved. The overall structure of the invention is compact, and the water-sealed floor drain formed by connecting a plura