The finance chief has handed his resignation to the presidential council of the government of national accord, a source in the ministry told the Al-Wasat.
His appointment was part of a cabinet reshuffle in Tripoli, largely seen as an attempt to boost the national support of the government, rivaled by the parliament based in the eastern city of Tobruk.
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Libya has been torn apart by conflict since the country's longtime leader Muammar Gaddafi was overthrown in 2011. The eastern part of the country is governed by the Tobruk-based parliament, backed by the Libyan National Army (LNA). The UN-backed Government of National Accord (GNA), headed by Prime Minister Fayez Sarraj, operates in the country's west and is headquartered in Tripoli.