He served in various senior administrative positions in the Belgian Congo, including command of the Orientale and Katanga provinces.
When he reached Stanleyville, Hubert Lothaire and Josué Henry had just defeated the remains of the Arab bands against whom Francis Dhanis had been campaigning for two years.
In August 1895 Lothaire, in Nyangwe, heard that the Luluabourg garrison had revolted on 4 July 1895, which could cause the Arabs to resume hostilities.
Malfeyt was constantly occupied in meeting the needs of the expedition while keeping the population in order and, at the end of 1897, suppressing a small Arab uprising.
There were the remains of rebel bands in the upper Lualaba regions, and arms were coming over the border from Angola.
In 1909 he accompanied Prince Albert of Belgium on a tour of the Belgian Congo, travelling by rail from Cape Hope through Rhodesia to the Victoria Falls, then by caravan through Katanga and the Orientale Province.
The prince returned to Belgium via Léopoldville and Boma, while Malfeyt carried out inspections in the Kasai and the Maringa-Lopori zone.
On 21 October 1911 Malfeyt embarked for the 6th time for Africa, appointed to command Katanga, where he replaced Émile Wangermée as governor for a year.
In August 1914 World War I broke out, and the eastern border of the Congo was threatened from German East Africa, but Malfeyt took quick action to assemble and supply the Belgian troops.
[1] Alexis Bertrand took responsibility as interim deputy-governor general of Orientale Province from July 1916 to August 1917, when Adolphe De Meulemeester took over.