Soil-covering device of dotted seeder

The invention relates to a soil-covering device of a seeder, in particular to a soil-covering device of a dotted seeder. The soil-covering device comprises a soil-cutting wafer (4), a soil-covering roller (2) and a soil-scraping plate brush (1), wherein the soil-covering roller (2) is provided with a soil outlet (5). The soil-covering device is characterized in that the soil-covering roller (2) is provided with a membrane-cutting knife (3). Compared with the prior art, the soil-covering device provided by the invention has the advantages of simple structure, accurate and uniform soil covering and good operation effect, can carry out seed-row gap-cutting on membranes paved after seeding and accurately cover soils on gaps aiming at the current dibble seeding or row planting modes, and then the soils is flatted by the brush, so that the daylighting surfaces of seed rows are ensured under the condition of complete soil moisture conservation, and the seedlings can naturally pass through the membrane, thereby impro