Metal mixed powder pre-pressing forming die

The utility model discloses a metal mixed powder pre-pressing forming die. The metal mixed powder pre-pressing forming die comprises an outer die sleeve, an inner die core, an upper pressing die and a lower pressing die. A through hole is formed in the outer die sleeve, the inner die core is matched with the through hole of the outer die sleeve, the inner die core comprises a first core block, a second core block and a connecting block, the first core block and the second core block are spliced together and define a cavity, first caulking grooves are formed in the two sides of the splicing face of the first core block, and second caulking grooves are formed in the two sides of the splicing face of the second core block. The first caulking groove is opposite to the second caulking groove in position, the connecting block is matched with the first caulking groove and the second caulking groove, the upper pressing die is arranged above the inner die core, the lower pressing die is arranged below the inner die co