System for treating bottom mud pollutants

The invention discloses a system for bottom mud pollutant treatment, which comprises a planting disc and a seedling supplementing disc, the planting disc and the seedling supplementing disc are connected with each other through a connecting rod, and a plurality of conical sleeves capable of controlling opening and closing and a plurality of pairs of extrusion plates for compacting bottom mud are mounted on the planting disc. A guide pipe used for guiding plant seedlings to fall down is arranged above each conical sleeve, the guide pipes are fixedly connected to the seedling supplementing disc and communicated with the seedling storage grooves through through holes formed in the seedling supplementing disc, the seedling storage grooves are formed in the inclined face of the upper side face of the seedling supplementing disc, and the inclined face of the seedling supplementing disc is low in inside and high in outside. According to the planting system, when submerged plants are planted, the planting system is n