Coffee extraction cup

The coffee extraction cup comprises an outer cup body and an inner cup body arranged in the outer cup body, the inner cup body can slide along the inner wall of the outer cup body, a sealing ring is arranged between the inner cup body and the outer cup body, the two ends of the inner cup body are open, a coffee powder bowl is arranged in the opening in the bottom of the inner cup body, and the bowl opening of the coffee powder bowl faces the bottom of the outer cup body. A coffee containing cavity is defined by the coffee powder bowl, the outer cup and the sealing ring, and the coffee powder bowl separates the inner space of the inner cup from the coffee containing cavity. Coffee particles and water are poured into the outer cup, the coffee particles and the water are proportionally mixed and brewed according to personal taste to obtain coffee liquid with the coffee particles, and the inner cup slides downwards along the inner wall of the outer cup, so that the filter screen of the coffee powder bowl can filt