Efficient water-saving direct-flushing closestool

The invention discloses an efficient water-saving direct-flushing closestool which comprises a urinal (1), a sewage suction pipe (5), a sewer pipe (6), a transfer cavity (2) and a vacuum pressurizing integrated pump (3), the urinal (1) is connected with the sewage suction pipe (5), the transfer cavity (2) is arranged between the sewage suction pipe (5) and the sewer pipe (6), and an inlet interface valve (104) and an outlet interface valve (105) are arranged at an inlet and an outlet of the transfer cavity (2) respectively. The vacuum pressurization integrated pump (3) comprises a pressurization cavity (31) and a vacuum cavity (32), the vacuum cavity (32) is connected with the transfer cavity (2) through a pipeline, the pressurization cavity (31) is connected with a water feeding pipe (4) and a flushing pipe (7), a water feeding valve (101) is arranged on the water feeding pipe (4), a flushing valve (103) is arranged on the flushing pipe (7), dirt in a urinal is sucked in through vacuum, and compared with a t